下列生物全属于腹足纲的是（）。答案: 蜗牛蛞蝓鲍

money selling three no masks. He thinks

下列生物全属于腹足纲的是（）。

答案: 蜗牛蛞蝓鲍

本门课程完整答案：点击这里，查看《古生物学及地史学(中南大学) 》mooc慕课答案2026年版

that under this special epidemic period，

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肺螺亚纲的类群在陆地或者淡水生活，其特点为（）。答案: 没有鳃，但外套腔的表面富含血管，可供呼吸本门课程完整答案：点击这里，查看《古生物学及地史学(中南大学) 》mooc慕课答案2026年版
（）为后直蛏。答案: 本门课程完整答案：点击这里，查看《古生物学及地史学(中南大学) 》mooc慕课答案2026年版
Which of the following item matters most to a public speaker? A:Pronunciation. B:Language proficiency. C:Critical thinking skill. D:Inherent talent. 答案: Critical thinking skill. 本门课程完整答案：点击这里，查看《英语演讲艺术01（20192）(西安交通大学)》mooc慕课答案2026年版
Fundamentally， English public speaking skill will help you ______. A:win an election by the prominent performance in an English debate of a campaign. B:give an effective presentation in a product promotion in a company. C:stand out in the admission interview of a postgraduate education or in a job interview. D:transmit information， tell stories， motivate people to act or some combination of those in public occasions. 答案: transmit information， tell stories， motivate people to act or some combination of those in public occasions. 本门课程完整答案：点击这里，查看《英语演讲艺术01（20192）(西安交通大学)》mooc慕课答案2026年版
Both the speaker of a casual conversation and that of a public speech need to _________. A:use formal language. B:organize their thoughts logically. C:structure the content highly. D:be self-centered. 答案: organize their thoughts logically. 本门课程完整答案：点击这里，查看《英语演讲艺术01（20192）(西安交通大学)》mooc慕课答案2026年版
Which of the following four items are the qualities a good public speaker should acquire? A:Main idea， structure， language， delivery. B:General idea， topic sentence， examples， gestures. C:Main idea， gesture， eye contact， confidence. D:General idea， language， pronunciation， mannerism. 答案: Main idea， structure， language， delivery. 本门课程完整答案：点击这里，查看《英语演讲艺术01（20192）(西安交通大学)》mooc慕课答案2026年版
Which of the following statement about English Public Speaking is TRUE? A:One’s language competence decides the performance in a public speech. B:Public speaking gives speakers the chance to exchange ideas. C:Flowery language is more important than content in a public speech. D:Public speech is a platform to voice out thoughts. 答案: Public speech is a platform to voice out thoughts. WEEK 1 Unit 2 Testing 本门课程完整答案：点击这里，查看《英语演讲艺术01（20192）(西安交通大学)》mooc慕课答案2026年版
下述哪行程序没有生成正态分布的随机数？ ‍ ( ) A:x=np.random.normal(10，2，5) B:x=np.random.normal(2，5，[5，2]) C:x=np.random.normal(2，5，[2，5]) D:x=2+5*np.random.randn(10) 答案: x=np.random.normal(10，2，5) 本门课程完整答案：点击这里，查看《应用回归与时间序列(宁波工程学院)》mooc慕课答案2026年版
Public speaking anxiety is a sign of psychological weakness. A:正确 B:错误答案: 错误本门课程完整答案：点击这里，查看《英语演讲艺术01（20192）(西安交通大学)》mooc慕课答案2026年版
在计算机应用领域里，（）是其最广泛的应用方面。 A:过程控制 B:科学计算 C:数据处理 D:计算机辅助系统答案: 数据处理本门课程完整答案：点击这里，查看《医学计算机与信息素养(西安医学高等专科学校)》mooc慕课答案2026年版
You look more nervous to your audience than you actually feel. A:正确 B:错误答案: 错误本门课程完整答案：点击这里，查看《英语演讲艺术01（20192）(西安交通大学)》mooc慕课答案2026年版
With proper training， public speaking anxiety can be reduced. A:正确 B:错误答案: 正确本门课程完整答案：点击这里，查看《英语演讲艺术01（20192）(西安交通大学)》mooc慕课答案2026年版
The more familiar you are with your speech， the less nervous you may feel. A:正确 B:错误答案: 正确本门课程完整答案：点击这里，查看《英语演讲艺术01（20192）(西安交通大学)》mooc慕课答案2026年版
One should memorize every sentence of his or her speech. A:正确 B:错误答案: 错误 WEEK 2 Unit 3 Testing 本门课程完整答案：点击这里，查看《英语演讲艺术01（20192）(西安交通大学)》mooc慕课答案2026年版
Choose a topic that you have been studying for years， one about which you could give a speech without any discomfort. This is the best way to acclimate yourself to public speaking within your moral and academic arena. A:正确 B:错误答案: 正确本门课程完整答案：点击这里，查看《英语演讲艺术01（20192）(西安交通大学)》mooc慕课答案2026年版
You may choose a topic which you have some knowledge but not enough to prepare a speech without further research. A:正确 B:错误答案: 正确本门课程完整答案：点击这里，查看《英语演讲艺术01（20192）(西安交通大学)》mooc慕课答案2026年版
Read and copy the Internet and professional publications to learn about the latest developments in the area you will discuss. A:正确 B:错误答案: 错误本门课程完整答案：点击这里，查看《英语演讲艺术01（20192）(西安交通大学)》mooc慕课答案2026年版
Most of the time， the best way to approach topic selection is to pick a single unifying message that you want to deliver and then scour your brain for amazing experiences that add emotional depth to the logical argument of your message. A:正确 B:错误答案: 正确本门课程完整答案：点击这里，查看《英语演讲艺术01（20192）(西安交通大学)》mooc慕课答案2026年版
When you have a real message in your head or heart – an inner urge to speak- you are almost sure to do yourself credit. A:正确 B:错误答案: 正确 WEEK 2 Unit 4 Testing 本门课程完整答案：点击这里，查看《英语演讲艺术01（20192）(西安交通大学)》mooc慕课答案2026年版
下述程序绘制一条对数函数图，其中第5行的第3个参数的作用是 ( ) import numpy as np #line 1 import matplotlib.pyplot as plt #line 2 x=np.arange(1，20，0.2) #line 3 y=np.log(x) #line 4 plt.plot(x，y，’b:’，label=’logarithm curve’) #line 5 plt.xlabel(‘x’) #line 6 plt.ylabel(‘y’) #line 7 plt.legend() #line 8‍ A:指定图像的横坐标的名称 B:指定图像的纵坐标的名称 C:指定图像曲线的颜色和形状 D:指定图像的标签答案: 指定图像曲线的颜色和形状本门课程完整答案：点击这里，查看《应用回归与时间序列(宁波工程学院)》mooc慕课答案2026年版
十进制数215用二进制数表示是（）。 A:1100001 B:1101001 C:0011001 D:11010111 答案: 11010111 本门课程完整答案：点击这里，查看《医学计算机与信息素养(西安医学高等专科学校)》mooc慕课答案2026年版
Which of the following features the most common structure of a speech? A:Topic， theme and main points. B:Concept， illustration and example. C:Introduction， body and conclusion. D:Beginning， climax and ending. 答案: Introduction， body and conclusion. 本门课程完整答案：点击这里，查看《英语演讲艺术01（20192）(西安交通大学)》mooc慕课答案2026年版
Which of the following is essential before you move into the body of your speech? A:Amusing the audience. B:Controlling your emotions. C:Building suspense. D:Previewing the main points. 答案: Previewing the main points. 本门课程完整答案：点击这里，查看《英语演讲艺术01（20192）(西安交通大学)》mooc慕课答案2026年版
Which of the following patterns is most frequently used to organize the main points in a speech? A:Topical pattern. B:Chronological pattern. C:Spatial pattern. D:Problem-solution pattern. 答案: Topical pattern. 本门课程完整答案：点击这里，查看《英语演讲艺术01（20192）(西安交通大学)》mooc慕课答案2026年版
If you want to show how the occurrence of one thing is a direct result of another thing， which pattern is probably the most effective? A:Problem-solution pattern. B:Cause-and-effect pattern. C:Topical pattern. D:Chronological pattern. 答案: Cause-and-effect pattern. 本门课程完整答案：点击这里，查看《英语演讲艺术01（20192）(西安交通大学)》mooc慕课答案2026年版
Which of the following is essential before you end your speech? A:To call for actions. B:To appeal to audience’s emotions. C:To review the main points or central idea. D:To remind the audience the importance of the topic. 答案: To review the main points or central idea. WEEK 3 Unit 5 Testing 本门课程完整答案：点击这里，查看《英语演讲艺术01（20192）(西安交通大学)》mooc慕课答案2026年版
1. Gaining the audience attention is the most fundamental function of an introduction. A:正确 B:错误答案: 正确本门课程完整答案：点击这里，查看《英语演讲艺术01（20192）(西安交通大学)》mooc慕课答案2026年版
2. A speaker can establish his or her credibility by quoting from an expert. A:正确 B:错误答案: 正确本门课程完整答案：点击这里，查看《英语演讲艺术01（20192）(西安交通大学)》mooc慕课答案2026年版
3. A rhetorical question expects immediate verbal response from the audience. A:正确 B:错误答案: 错误本门课程完整答案：点击这里，查看《英语演讲艺术01（20192）(西安交通大学)》mooc慕课答案2026年版
4. A speaker needs to make an apology when he or she doesn’t behave very confidently. A:正确 B:错误答案: 错误本门课程完整答案：点击这里，查看《英语演讲艺术01（20192）(西安交通大学)》mooc慕课答案2026年版
5. Greeting the audience in the beginning of a speech may help the speaker release from stage fright. A:正确 B:错误答案: 错误 WEEK 3 Unit 6 Testing 本门课程完整答案：点击这里，查看《英语演讲艺术01（20192）(西安交通大学)》mooc慕课答案2026年版
在微型计算机中应用最普遍的字符编码是（） A:ASCII码 B:BCD码 C:汉字编码 D:补码答案: ASCII码本门课程完整答案：点击这里，查看《医学计算机与信息素养(西安医学高等专科学校)》mooc慕课答案2026年版
下述哪个命令不能实现普通最小二乘回归？( ) A:statsmodels.api.OLS() B:statsmodels.formula.api.ols() C:numpy.linalg.lstsq() D:pandas.formula.api.ols() 答案: pandas.formula.api.ols() 本门课程完整答案：点击这里，查看《应用回归与时间序列(宁波工程学院)》mooc慕课答案2026年版
Which of the following belongs to the general types of speech? 本门课程完整答案：点击这里，查看《英语演讲艺术01（20192）(西安交通大学)》mooc慕课答案2026年版
Choose the right statement 答案: Innovation practice is not high risk， and there is innovation spirit in all fields and industries. 本门课程完整答案：点击这里，查看《Foundation of Innovation and Entrepreneurship(Beihang University) 》mooc慕课答案2026年版
Choose the wrong statement 答案: John sees his cousin make a lot of money selling three no masks. He thinks that under this special epidemic period， it would be lucky to have masks. This is a rare opportunity to start a business. 本门课程完整答案：点击这里，查看《Foundation of Innovation and Entrepreneurship(Beihang University) 》mooc慕课答案2026年版
Who are they? 答案: They are cartoon characters called “entrepreneurial babies”.Analysis: there is an introduction at the end of the video. It is mainly used to urge students to complete the whole course， and also used to introduce the special emoji of this course designed by the course designer. 本门课程完整答案：点击这里，查看《Foundation of Innovation and Entrepreneurship(Beihang University) 》mooc慕课答案2026年版
Suppose you have a cousin who came back to his hometown to start his own business after graduating from university. He heard that you have taken the innovation and entrepreneurship course. And he asked you what can help him improve his success rate. Which of the following options do you choose to guide him? Choose carefully. Don’t mess with your cousin! 答案: Having a knowledge of the entrepreneurial environment and preferential policies of hometown， and trying to get a little more support on venues， funds， etc.; Having a knowledge of the urban planning of the hometown.; Avoiding projects prohibited and restricted by the city. ? Chapter 2 Entrepreneurial Team Chapter 2 Test： Entrepreneurial Team 本门课程完整答案：点击这里，查看《Foundation of Innovation and Entrepreneurship(Beihang University) 》mooc慕课答案2026年版
Which of the following statement or practice is wrong??(single choice) 答案: Some people in the team leave after a period of time. After a while， new people came. It’s a lot of trouble for people to come and go. So what one can do is done by himself. There is no need to find a partner. 本门课程完整答案：点击这里，查看《Foundation of Innovation and Entrepreneurship(Beihang University) 》mooc慕课答案2026年版
Who is more suitable to be a partner in the following choices?(single choice) 答案: Joe is the founder’s classmate and roommate， and he has the same ambition as the founder. 本门课程完整答案：点击这里，查看《Foundation of Innovation and Entrepreneurship(Beihang University) 》mooc慕课答案2026年版
An entrepreneurial team is composed of three people. After half a year’s efforts， it has made a product prototype and started to push it to the market. At this time， one person in the team thinks that it’s important to achieve profits quickly， one thinks that it’s important to accumulate users quickly to occupy the market， and one thinks that improving products and providing users with better experience is the primary goal in this stage. What to do when team members disagree with each other? Which of the following is wrong:(single choice) 答案: They should work independently and advance at the same time according to their different goals. 本门课程完整答案：点击这里，查看《Foundation of Innovation and Entrepreneurship(Beihang University) 》mooc慕课答案2026年版
You have a good idea or a good project and decide to start a business. When building and managing a team， which of the followings are possible and better practices?(multiple choices) 答案: Recruit partners among schoolmates and attract people who need to join.; After one month’s efforts， three students follow you to join the team to start a business. After negotiation， each person invests 10000 yuan， and you own 70% of the equity. Other schoolmates also own different shares of equity according to their responsibilities. And a partnership agreement is signed. You also reserve 10% of the equity.; Half a year later， one of the partners want to withdraw. You are optimistic about the prospect of the project. So you pay 20000 yuan to buy back all the shares he owns. Chapter 3 Entrepreneurial Opportunities Chapter 3 Test： Entrepreneurial Opportunities 本门课程完整答案：点击这里，查看《Foundation of Innovation and Entrepreneurship(Beihang University) 》mooc慕课答案2026年版
以下是冯•诺依曼体系结构计算机的基本思想之一的是（） A:计算精度高 B:存储程序控制 C:处理速度快 D:可靠性高答案: 存储程序控制本门课程完整答案：点击这里，查看《医学计算机与信息素养(西安医学高等专科学校)》mooc慕课答案2026年版
下述哪个命令不是用来创建数据框变量的？( ) A:mydf = pandas.read_csv(‘data.csv’) B:mydf = pandas.read_csv(‘data.txt’) C:myfile=open(‘data.txt’) D:df=pandas.DataFrame([[‘alice’，87]，[‘benny’，80]，[‘chris’，92]]) 答案: myfile=open(‘data.txt’) 本门课程完整答案：点击这里，查看《应用回归与时间序列(宁波工程学院)》mooc慕课答案2026年版
Which of the following business opportunity is not possible?? 答案: The “class selection” of very semester is the most intense and nervous time in the university. Some students can’t select the hot courses they want to take. The solution that Zheng thought of was to develop the “designated class-selection” app to provide paid services for the students. He thought that this not only met the market needs， but also could be mutually beneficial. It was a business opportunity worth investment. Wang was inspired， the school has a physical exercise requirements: In the specified period of time， swipe card and exercise; the rest of the time， you can do free exercise. Every semester， there are rules to run a certain number of times. There will be a bonus point for the final sports score after the specified number of times. Some students don’t want to run. Wang thinks “designated running” is a business opportunity. 本门课程完整答案：点击这里，查看《Foundation of Innovation and Entrepreneurship(Beihang University) 》mooc慕课答案2026年版
Which of the following innovations does not use the divergent 6W method? 答案: When an American social network enters Japan， it continues its existing framework and design without considering the social habits and personality characteristics of Japanese young people. 本门课程完整答案：点击这里，查看《Foundation of Innovation and Entrepreneurship(Beihang University) 》mooc慕课答案2026年版
Which of the following statements or practices is wrong? 答案: Due to the lack of start-up funds， Team A decided to borrow 200，000 yuan from parents and friends， while team B overdrawn 200，000 yuan from bank credit card to start a business. In this case， the funds of both teams are not their own， and they face the same risks. 本门课程完整答案：点击这里，查看《Foundation of Innovation and Entrepreneurship(Beihang University) 》mooc慕课答案2026年版
“IOT Chip Bracelet” entrepreneurial project needs to be further improved before the product is officially released. The founder Wu Xiaoxuan knows technology but does not have professional entrepreneurial understanding. Now he comes to ask you how to improve his product. Which of the following suggestions are reasonable for the team?(multiple-choice question) 答案: First release a product that meets the core functions， and then quickly launch the next new product according to the market feedback.; Through market research， we can understand the needs of the target users in detail and improve the products based on the market.; We need to work out a business timetable to make clear when the product will be officially released. 本门课程完整答案：点击这里，查看《Foundation of Innovation and Entrepreneurship(Beihang University) 》mooc慕课答案2026年版
有如下代码段：public static void booleanTest() { int a = 1， b =1; if (a == b \|\| b<0) a++; if (a <= 2 &&(!(b<0))) b=b<<1; System.out.println(a + “，” + b);} 则运行结果为： A:2，1 B:2，2 C:2，3 D:1，2 答案: 2，2 本门课程完整答案：点击这里，查看《Java核心技术（华东师范大学）》mooc慕课答案2026年版
如下赋值语句中，有语法错误的是? A:float f1 = 1.2; B:float f1 = 1.2f; C:float f1 = 1; D:float f1 = 0xAE; 答案: float f1 = 1.2; 本门课程完整答案：点击这里，查看《Java核心技术（华东师范大学）》mooc慕课答案2026年版

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下列生物全属于腹足纲的是（）。 答案: 蜗牛蛞蝓鲍

肺螺亚纲的类群在陆地或者淡水生活，其特点为（）。 答案: 没有鳃，但外套腔的表面富含血管，可供呼吸

（）为后直蛏。 答案:

Which of the following item matters most to a public speaker? A:Pronunciation. B:Language proficiency. C:Critical thinking skill. D:Inherent talent. 答案: Critical thinking skill.

Both the speaker of a casual conversation and that of a public speech need to _________. A:use formal language. B:organize their thoughts logically. C:structure the content highly. D:be self-centered. 答案: organize their thoughts logically.

WEEK 1 Unit 2 Testing

下述哪行程序没有生成正态分布的随机数？ ‍ ( ) A:x=np.random.normal(10，2，5) B:x=np.random.normal(2，5，[5，2]) C:x=np.random.normal(2，5，[2，5]) D:x=2+5*np.random.randn(10) 答案: x=np.random.normal(10，2，5)

Public speaking anxiety is a sign of psychological weakness. A:正确 B:错误 答案: 错误

在计算机应用领域里，（ ）是其最广泛的应用方面。 A:过程控制 B:科学计算 C:数据处理 D:计算机辅助系统 答案: 数据处理

You look more nervous to your audience than you actually feel. A:正确 B:错误 答案: 错误

With proper training， public speaking anxiety can be reduced. A:正确 B:错误 答案: 正确

The more familiar you are with your speech， the less nervous you may feel. A:正确 B:错误 答案: 正确

One should memorize every sentence of his or her speech. A:正确 B:错误 答案: 错误

WEEK 2 Unit 3 Testing

Choose a topic that you have been studying for years， one about which you could give a speech without any discomfort. This is the best way to acclimate yourself to public speaking within your moral and academic arena. A:正确 B:错误 答案: 正确

You may choose a topic which you have some knowledge but not enough to prepare a speech without further research. A:正确 B:错误 答案: 正确

Read and copy the Internet and professional publications to learn about the latest developments in the area you will discuss. A:正确 B:错误 答案: 错误

Most of the time， the best way to approach topic selection is to pick a single unifying message that you want to deliver and then scour your brain for amazing experiences that add emotional depth to the logical argument of your message. A:正确 B:错误 答案: 正确

When you have a real message in your head or heart – an inner urge to speak- you are almost sure to do yourself credit. A:正确 B:错误 答案: 正确

WEEK 2 Unit 4 Testing

十进制数215用二进制数表示是（ ）。 A:1100001 B:1101001 C:0011001 D:11010111 答案: 11010111

Which of the following features the most common structure of a speech? A:Topic， theme and main points. B:Concept， illustration and example. C:Introduction， body and conclusion. D:Beginning， climax and ending. 答案: Introduction， body and conclusion.

Which of the following is essential before you move into the body of your speech? A:Amusing the audience. B:Controlling your emotions. C:Building suspense. D:Previewing the main points. 答案: Previewing the main points.

Which of the following patterns is most frequently used to organize the main points in a speech? A:Topical pattern. B:Chronological pattern. C:Spatial pattern. D:Problem-solution pattern. 答案: Topical pattern.

If you want to show how the occurrence of one thing is a direct result of another thing， which pattern is probably the most effective? A:Problem-solution pattern. B:Cause-and-effect pattern. C:Topical pattern. D:Chronological pattern. 答案: Cause-and-effect pattern.

Which of the following is essential before you end your speech? A:To call for actions. B:To appeal to audience’s emotions. C:To review the main points or central idea. D:To remind the audience the importance of the topic. 答案: To review the main points or central idea.

WEEK 3 Unit 5 Testing

1. Gaining the audience attention is the most fundamental function of an introduction. A:正确 B:错误 答案: 正确

2. A speaker can establish his or her credibility by quoting from an expert. A:正确 B:错误 答案: 正确

3. A rhetorical question expects immediate verbal response from the audience. A:正确 B:错误 答案: 错误

4. A speaker needs to make an apology when he or she doesn’t behave very confidently. A:正确 B:错误 答案: 错误

5. Greeting the audience in the beginning of a speech may help the speaker release from stage fright. A:正确 B:错误 答案: 错误

WEEK 3 Unit 6 Testing

在微型计算机中应用最普遍的字符编码是（ ） A:ASCII码 B:BCD码 C:汉字编码 D:补码 答案: ASCII码

下述哪个命令不能实现普通最小二乘回归？( ) A:statsmodels.api.OLS() B:statsmodels.formula.api.ols() C:numpy.linalg.lstsq() D:pandas.formula.api.ols() 答案: pandas.formula.api.ols()

Which of the following belongs to the general types of speech?

Choose the right statement 答案: Innovation practice is not high risk， and there is innovation spirit in all fields and industries.

Choose the wrong statement 答案: John sees his cousin make a lot of money selling three no masks. He thinks that under this special epidemic period， it would be lucky to have masks. This is a rare opportunity to start a business.

?

Chapter 2 Entrepreneurial Team Chapter 2 Test： Entrepreneurial Team

Which of the following statement or practice is wrong??(single choice) 答案: Some people in the team leave after a period of time. After a while， new people came. It’s a lot of trouble for people to come and go. So what one can do is done by himself. There is no need to find a partner.

Who is more suitable to be a partner in the following choices?(single choice) 答案: Joe is the founder’s classmate and roommate， and he has the same ambition as the founder.

Chapter 3 Entrepreneurial Opportunities Chapter 3 Test： Entrepreneurial Opportunities

以下是冯•诺依曼体系结构计算机的基本思想之一的是（ ） A:计算精度高 B:存储程序控制 C:处理速度快 D:可靠性高 答案: 存储程序控制

下述哪个命令不是用来创建数据框变量的？( ) A:mydf = pandas.read_csv(‘data.csv’) B:mydf = pandas.read_csv(‘data.txt’) C:myfile=open(‘data.txt’) D:df=pandas.DataFrame([[‘alice’，87]，[‘benny’，80]，[‘chris’，92]]) 答案: myfile=open(‘data.txt’)

Which of the following innovations does not use the divergent 6W method? 答案: When an American social network enters Japan， it continues its existing framework and design without considering the social habits and personality characteristics of Japanese young people.

有如下代码段：public static void booleanTest() { int a = 1， b =1; if (a == b || b<0) a++; if (a <= 2 &&(!(b<0))) b=b<<1; System.out.println(a + “，” + b);} 则运行结果为： A:2，1 B:2，2 C:2，3 D:1，2 答案: 2，2

如下赋值语句中，有语法错误的是? A:float f1 = 1.2; B:float f1 = 1.2f; C:float f1 = 1; D:float f1 = 0xAE; 答案: float f1 = 1.2;

下列生物全属于腹足纲的是（）。

答案: 蜗牛蛞蝓鲍

肺螺亚纲的类群在陆地或者淡水生活，其特点为（）。

答案: 没有鳃，但外套腔的表面富含血管，可供呼吸

（）为后直蛏。

答案:

Which of the following item matters most to a public speaker?

A:Pronunciation.
B:Language proficiency.
C:Critical thinking skill.
D:Inherent talent.
答案: Critical thinking skill.

Both the speaker of a casual conversation and that of a public speech need to _________.

A:use formal language.
B:organize their thoughts logically.
C:structure the content highly.
D:be self-centered.
答案: organize their thoughts logically.

下述哪行程序没有生成正态分布的随机数？ ‍ ( )

A:x=np.random.normal(10，2，5)
B:x=np.random.normal(2，5，[5，2])
C:x=np.random.normal(2，5，[2，5])
D:x=2+5*np.random.randn(10)
答案: x=np.random.normal(10，2，5)

Public speaking anxiety is a sign of psychological weakness.

A:正确
B:错误
答案: 错误

在计算机应用领域里，（）是其最广泛的应用方面。

A:过程控制
B:科学计算
C:数据处理
D:计算机辅助系统
答案: 数据处理

You look more nervous to your audience than you actually feel.

A:正确
B:错误
答案: 错误

With proper training， public speaking anxiety can be reduced.

A:正确
B:错误
答案: 正确

The more familiar you are with your speech， the less nervous you may feel.

A:正确
B:错误
答案: 正确

One should memorize every sentence of his or her speech.

A:正确
B:错误
答案: 错误

Choose a topic that you have been studying for years， one about which you could give a speech without any discomfort. This is the best way to acclimate yourself to public speaking within your moral and academic arena.

A:正确
B:错误
答案: 正确

You may choose a topic which you have some knowledge but not enough to prepare a speech without further research.

A:正确
B:错误
答案: 正确

Read and copy the Internet and professional publications to learn about the latest developments in the area you will discuss.

A:正确
B:错误
答案: 错误

Most of the time， the best way to approach topic selection is to pick a single unifying message that you want to deliver and then scour your brain for amazing experiences that add emotional depth to the logical argument of your message.

A:正确
B:错误
答案: 正确

When you have a real message in your head or heart – an inner urge to speak- you are almost sure to do yourself credit.

A:正确
B:错误
答案: 正确

十进制数215用二进制数表示是（）。

A:1100001
B:1101001
C:0011001
D:11010111
答案: 11010111

Which of the following features the most common structure of a speech?

A:Topic， theme and main points.
B:Concept， illustration and example.
C:Introduction， body and conclusion.
D:Beginning， climax and ending.
答案: Introduction， body and conclusion.

Which of the following is essential before you move into the body of your speech?

A:Amusing the audience.
B:Controlling your emotions.
C:Building suspense.
D:Previewing the main points.
答案: Previewing the main points.

Which of the following patterns is most frequently used to organize the main points in a speech?

A:Topical pattern.
B:Chronological pattern.
C:Spatial pattern.
D:Problem-solution pattern.
答案: Topical pattern.

If you want to show how the occurrence of one thing is a direct result of another thing， which pattern is probably the most effective?

A:Problem-solution pattern.
B:Cause-and-effect pattern.
C:Topical pattern.
D:Chronological pattern.
答案: Cause-and-effect pattern.

Which of the following is essential before you end your speech?

A:To call for actions.
B:To appeal to audience’s emotions.
C:To review the main points or central idea.
D:To remind the audience the importance of the topic.
答案: To review the main points or central idea.

1. Gaining the audience attention is the most fundamental function of an introduction.

A:正确
B:错误
答案: 正确

2. A speaker can establish his or her credibility by quoting from an expert.

A:正确
B:错误
答案: 正确

3. A rhetorical question expects immediate verbal response from the audience.

A:正确
B:错误
答案: 错误

4. A speaker needs to make an apology when he or she doesn’t behave very confidently.

A:正确
B:错误
答案: 错误

5. Greeting the audience in the beginning of a speech may help the speaker release from stage fright.

A:正确
B:错误
答案: 错误

在微型计算机中应用最普遍的字符编码是（）

A:ASCII码
B:BCD码
C:汉字编码
D:补码
答案: ASCII码

下述哪个命令不能实现普通最小二乘回归？( )

A:statsmodels.api.OLS()
B:statsmodels.formula.api.ols()
C:numpy.linalg.lstsq()
D:pandas.formula.api.ols()
答案: pandas.formula.api.ols()

Choose the right statement

答案: Innovation practice is not high risk， and there is innovation spirit in all fields and industries.

Choose the wrong statement

答案: John sees his cousin make a lot of money selling three no masks. He thinks that under this special epidemic period， it would be lucky to have masks. This is a rare opportunity to start a business.

Which of the following statement or practice is wrong??(single choice)

答案: Some people in the team leave after a period of time. After a while， new people came. It’s a lot of trouble for people to come and go. So what one can do is done by himself. There is no need to find a partner.

Who is more suitable to be a partner in the following choices?(single choice)

答案: Joe is the founder’s classmate and roommate， and he has the same ambition as the founder.

以下是冯•诺依曼体系结构计算机的基本思想之一的是（）

A:计算精度高
B:存储程序控制
C:处理速度快
D:可靠性高
答案: 存储程序控制

下述哪个命令不是用来创建数据框变量的？( )

A:mydf = pandas.read_csv(‘data.csv’)
B:mydf = pandas.read_csv(‘data.txt’)
C:myfile=open(‘data.txt’)
D:df=pandas.DataFrame([[‘alice’，87]，[‘benny’，80]，[‘chris’，92]])
答案: myfile=open(‘data.txt’)

Which of the following innovations does not use the divergent 6W method?

答案: When an American social network enters Japan， it continues its existing framework and design without considering the social habits and personality characteristics of Japanese young people.

有如下代码段：public static void booleanTest() { int a = 1， b =1; if (a == b || b<0) a++; if (a <= 2 &&(!(b<0))) b=b<<1; System.out.println(a + “，” + b);} 则运行结果为：

A:2，1
B:2，2
C:2，3
D:1，2
答案: 2，2

如下赋值语句中，有语法错误的是?

A:float f1 = 1.2;
B:float f1 = 1.2f;
C:float f1 = 1;
D:float f1 = 0xAE;
答案: float f1 = 1.2;