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

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

ooc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

Read and copy the Internet and professional publications to learn abou

t the latest developments in the area you will discuss.

A:正确
B:错误
答案: 错误

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数据来源：网课题库

= pandas.read_csv‘data.csv’ B:mydf = pa

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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

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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

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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

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十进制数215用二进制数表示是（ ）。

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

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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.

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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.

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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.

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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.

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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

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

A:正确
B:错误
答案: 正确

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

A:正确
B:错误
答案: 正确

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

A:正确
B:错误
答案: 错误

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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

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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

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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

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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()

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

       

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Choose the right statement

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

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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.

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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.

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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

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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.

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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.

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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.

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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

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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

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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’)

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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.

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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.

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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.

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“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.

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 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

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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

有如下类定义：public class Rectangle {public int width = 3;public int height = 4;public int area() {        return width * height;}}则如下代码输出结果为：Rectangle rectangle;rectangle.height = 5;System.out.println(rectangle.area());

A:15
B:有编译错误，程序不能运行
C:12
D:0
答案: 有编译错误，程序不能运行

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执行如下代码片段后，i和n的值分别为：int i = 10;int n =( i++) % 5;

A:11， 1
B:11， 0
C:10， 1
D:10， 0
答案: 11， 0

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执行如下代码片段后，num的值为：int num = 5;num = (num % 2) == 0 ? num – 1 : num + 1;

A:1
B:4
C:5
D:6
答案: 6

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下面哪件设备属于输出设备（ ）

A:键盘
B:打印机
C:鼠标
D:扫描仪
答案: 打印机

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一个矩阵的最大特征值与最小特征值的商，称为这个矩阵的条件数。使用 numpy 模块，编写 Python 程序计算矩阵 的条件数，结果为 ( )

A:1

       

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有如下代码段：if (num >= 0)    if (num == 0)        System.out.println(“first string”);else     System.out.println(“second string”);System.out.println(“third string”);若num为3，则输出结果为：

A:third string
B:second stringthird string
C:first stringthird string
D:first stringsecond stringthird string
答案: second stringthird string

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下列变量名称中，不属于有效Java变量命名的是？

A:$num
B:_int
C:6nums
D:Jiayou
答案: 6nums

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对于Java1.7及之后版本，如下不能用于switch的类型是：

A:String
B:int
C:char
D:double
答案: double

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如下对Java基本类型的描述，错误的是？

A:char占1个字节
B:int 占4个字节
C:short 占2个字节
D:double占8个字节
答案: char占1个字节

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如下循环结构中，输出结果与其它三组不一致的一组是：

A:for (int i = 0; i < 10; i++)System.out.println(i);
B:int i = 0;while (i < 10) System.out.println(i++);
C:int i = 0;for (;i < 10;) System.out.println(i++);
D:int i = 0;while (i++ < 10) System.out.println(i);
答案: int i = 0;while (i++ < 10) System.out.println(i);

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swap方法定义如下：public static void swap(int num1， int num2) {        int temp = num1;        num1 = num2;        num2 = temp; }执行如下代码后，       int num1 = 10;       int num2 = 5;       int num3 = 20;       swap(num1， num2);       swap(num2， num3); num1， num2， num3的值分别为：

A:10， 5， 20
B:5， 20， 10
C:5， 10， 20
D:20， 5， 10
答案: 10， 5， 20

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Number类定义如下：public class Number {    public int x; }swap方法定义如下：public static void swap(Number number1， Number number2)    {        int temp = number1.x;        number1.x = number2.x;        number2.x = temp;    }运行如下代码：        Number number1 = new Number();        Number number2 = new Number();        Number number3 = new Number();        number1.x = 1;        number2.x = 2;        number3.x = 3;        swap(number1， number2);        swap(number2， number3);则number1.x， number2.x， number3.x的值分别为：

A:1， 2， 3
B:2， 3， 1
C:3， 2， 1
D:1， 3， 2
答案: 2， 3， 1

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假设有boolean变量flag1，flag2，则如下表达式中哪个不能代表异或逻辑？(异或逻辑：如果ab两个值不相同，则异或结果为true。如果ab两个值相同，异或结果为false。)

A:flag1 != flag2
B:(flag1 == true && flag2 == false) || (flag1 == false && flag2 == true)
C:!flag1 == flag2
D:(flag1 == true && flag2 == true) || (flag1 == false && flag2 == false)
答案: (flag1 == true && flag2 == true) || (flag1 == false && flag2 == false)

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如下关于Java类的说法，错误的是？

A:对象是类的实例化
B:可以通过对象访问类变量
C:java文件中只能包含一个类的定义
D:同一类的不同对象有着相同的类变量
答案: java文件中只能包含一个类的定义

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

电子签名的基本组成部分是什么

A:公私钥对
B:签名算法
C:证明算法
D:快速算法
答案: 公私钥对;

       

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广义地讲，软件泛指计算机运行所需的各种数据（ ）及与之相关的文档资料。

A:程序
B:文字处理系统
C:操作系统
D:数据库
答案: 程序

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

如下赋值语句，有编译错误的是？

A:byte b = -127;
B:int i = (byte)512;
C:byte b = 129;
D:byte b = -0; 
答案: byte b = 129;

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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