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单选题 What will be the output of the following Python code? nums = set([1,1,2,3,3,3,4,4]) print(len(nums))
学科：Python程序设计（双语）
时间：2025-04-27 06:56:35
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题目1单选题
Which of the following is an invalid variableA. fooB. _C. my_string_1D. 1st_string
题目2单选题
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题目3单选题
Which of the following choices is not a valid file pathA. 'D:\\Python\\a.txt'B. 'D:/Python/a.txt'C. 'D:\Python\a.txt'D. r'D:\Python\a.txt'
题目4单选题
What will be the output of the following Python code? l=[1, 0, 2, 0, 'hello', '', []] list(filter(bool, l))A. ErrorB. [1, 0, 2, 'hello', '', []]C. [1, 2, 'hello']D. [1, 0, 2, 0, 'hello', '', []]
题目5单选题
Which of the following lines of code will result in an errorA. s={4, 'abc', (1,2)}B. s={abs}C. s={san}D. s={2, 2.2, 3, 'xyz'}
题目6单选题
What will be the output of the following Python code? i = 0 while i < 3: print(i) i += 1 else: print(0)A. errorB. 0 1 2C. 0 1 2 3 0D. 0 1 2 0
题目7单选题
What will be the output of the following Python code? nums = set([1,1,2,3,3,3,4,4]) print(len(nums))A. 8B. 7C. 4D. Error, invalid syntax for formation of set
题目8单选题
What will be the output of the following Python code? i = 1 while False: if i%2 == 0: break print(i) i += 2A. 1 2 3 4 …B. 1C. 1 3 5 7 …D. nothing was printed
题目9单选题
The output of the following code is __. for i in range(1,6): if i/3==0: break else: print(i, end=' ')A. 1 2B. 1 2 3 4 5C. NoneD. 1 2 4 5
题目10单选题
Which of the following are NOT valid if/else statements in Python, assuming x and y are defined appropriatelyA. if x < y: print('foo'); print('bar'); print('baz')B. if x < y: print('foo') else: print('bar')C. if x < y and x > 10: print('foo')D. if x < y: print('foo') elif y < x: print('bar') else: print('baz')
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