2021 Data Processing Using Python（用Python玩转数据）(南京大学) 最新满分章节测试答案

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本课程起止时间为:2021-11-19到2022-01-25
本篇答案更新状态:已完结

Module 1： Basics of Python – 1.2 Multi-dimensional View of Python Multi-dimensional View of Python q

1、 问题:If k is integer, how many times will the following "while" loop be executed?k = 50 
while k > 1: 
    print(k) 
    k = k // 2
选项：
A:3
B:4
C:5
D:6
答案: 【5】

2、 问题:Which of the following code snippets can print “rest apples are less than 9”once and only once?
选项：
A:apples = 100
while True:
    if apples < 9:
        break
        print("rest apples are less than 9")
    apples -= 9
B:apples = 100
while True:
    if apples < 9:
        continue
        print("rest apples are less than 9")
    apples -= 9
C:apples = 100
while apples >= 1:
    if apples < 9:
        print("rest apples are less than 9")
        break
    apples -= 9
D:apples = 100
for a in reversed(range(apples)):
    if a < 9:
        print("rest apples are less than 9")
        continue
        apples -= 9
答案: 【apples = 100
while apples >= 1:
    if apples < 9:
        print("rest apples are less than 9")
        break
    apples -= 9】

3、 问题:Regarding the function below:def location(city, province):
    print(‘%s belongs to %s province’ % (city, province))Which of the following statement has a different result comparing with others?
选项：
A:location(‘Jiangsu’, ‘Nanjing’)
B:location(province = ‘Jiangsu’, city = ‘Nanjing’)
C:location(city = ‘Nanjing’, province = ‘Jiangsu’)
D:location(‘Nanjing’, ‘Jiangsu’)
答案: 【location(‘Jiangsu’, ‘Nanjing’)】

4、 问题:Define a function as below with f as the function parameter,def test(f, a, b): 
    print(f(a, b))Which of the following options will be the result of test((lambda x,y: x ** 3 + y), 2, 3)?
选项：
A:8
B:9
C:10
D:11
答案: 【11】

5、 问题:Define a function as below:  def my_power(x, n = 2):
    s = 1
    while n > 0:
        n -= 1
        s = s * x
    return sWhat’s the result of passing my_power(-3) and my_power(3, 3) respectively?
选项：
A:9 and 27
B:-9 and 27
C:9 and -27
D:-9 and -27
答案: 【9 and 27】

6、 问题:Which of the following is correct about the program below?def f(x):
     a = 7
     print(a + x)
a = 5
f(3)
print(a)
选项：
A:The result of the program is 10 and 5.
B:The result of the program is 10 and 7.
C:The result of the program is 8 and 5. 
D:The program cannot be executed normally.
答案: 【The result of the program is 10 and 5.】

7、 问题:What kind of exception will be generated when executing the following code snippet?>>> a = 3
>>> print(a ** b)
选项：
A:IndexError
B:ValueError
C:NameError
D:TypeError
答案: 【NameError】

8、 问题:If the code snippet always generates a random number in [0, 1.0 ), what’s the possible function from library random used here?>>> import random
>>> random.______()
选项：
A:randint
B:random
C:uniform
D:shuffle
答案: 【random】

9、 问题:Which of the following statements about the flow control of Python functions are correct?
选项：
A:Boolean operators have a very interesting short-circuit logic behavior: for an expression "x and y", when "x" is false, it directly returns "False", without calculating the value of "y". 
B:One of the characteristics of an "if" statement is: it makes judgment from top to bottom, and if one judgment is True, the statement corresponding to that judgment will be executed, ignoring the remaining "elif" and "else".
C:In "while" and "for" loops, a "continue" statement serves to stop the current loop and continues to enter the statement(s) below the loop body.
D:In "while" and "for" loops, a "break" statement serves to end the current loop and re-starts the loop.
答案: 【Boolean operators have a very interesting short-circuit logic behavior: for an expression "x and y", when "x" is false, it directly returns "False", without calculating the value of "y". ;
One of the characteristics of an "if" statement is: it makes judgment from top to bottom, and if one judgment is True, the statement corresponding to that judgment will be executed, ignoring the remaining "elif" and "else".】

10、 问题:Which of the following statements about the flow control of Python functions are correct?
选项：
A:As Boolean expressions, the values of None, 0, [] and {} would be regarded as "False" by the interpreter.
B:Standard Boolean values are 0 (representing False) and 1 (representing True); in fact, the result of the statement True==1 is True.
C:Comparisons of incompatible types, like integers and strings, is meaningless in mathematics. It is no longer supported in Python 3.x.
D:When "is" is a comparison operator, the meaning of "x is y" is to compare whether "x" is a sub-class of "y".
答案: 【As Boolean expressions, the values of None, 0, [] and {} would be regarded as "False" by the interpreter.;
Standard Boolean values are 0 (representing False) and 1 (representing True); in fact, the result of the statement True==1 is True.;
Comparisons of incompatible types, like integers and strings, is meaningless in mathematics. It is no longer supported in Python 3.x.】

11、 问题:Please decide whether the following statements are true or falseAn “if” statement  must be indented, by 4 spaces.
选项：
A:正确
B:错误
答案: 【错误】

12、 问题:What’s the result of the following program?s = 0
for i in range(1, 11):
     if i % 2 == 0:
        continue
     if i % 10 == 5:
        break
     s = s + i
print(s)
答案: 【4】

Module 1： Basics of Python – 1.1 Basics of Python Walk into Python quiz

1、 问题:Which of the following expressions is False?
选项：
A:(3 is 4) == 0
B:’abc’ < ‘ABC’
C:9 < 1 and 10 < 9 or 2 > 1
D:8 > 4 > 2
答案: 【‘abc’ < ‘ABC’】

2、 问题:Which of the following statements can NOT print the string “hello world” (the print result must be in the same line)?
选项：
A:print(”’hello 
        world”’)
B:print(‘hello world’)
C:print("hello world")
D:print(‘hello \
        world’)
答案: 【print(”’hello 
        world”’)】

3、 问题:Which of the following statements about Python is false?
选项：
A:One variable name can be assigned with different types and numerical values at different positions in Python. 
B:In Python, there is no need to explicitly declare the type of variable, yet to be determined by the "value". 
C:Python supports chained assignment and multiple assignment.
D:Upper or lower case is not sensitive in Python assignment.
答案: 【Upper or lower case is not sensitive in Python assignment.】

4、 问题:Which of the following types will the Python function input() return?
选项：
A:int
B:str
C:list
D:dict
答案: 【str】

5、 问题:Which of the following statements about module is false?
选项：
A:A complete Python file forms a module, an extension to enhance Python capability.
B:Functions in a module can be used in the form of "module.function" after the module is imported using the "import" clause.