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)

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)

s more suitable to be a partner in the f

下述哪行程序没有生成正态分布
c-92d5-a9adf94e85c4.png" style="width: 61px; height: 27px;" class="aligncenter">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

数据来源：网课题库

ollowing choices?single choice 答案: Joe i

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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;

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

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

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

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

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

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

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;

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

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

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

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

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

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