题目内容

已知列表list1 = [1,2,3,4,2],执行print(list1[2])后,程序运行结果为()。

A. 1
B. 2
C. 4
D. 3

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已知列表list1 = ["Python", "HTML","PHP","Java"], 执行print(list1[O:1])后,程序运行结果为()

A. [ ]
B. ["Python","HTML"]
C. ["Python"]
D. ["Python", "HTML","PHP","Java"]

已知列表list1 = [1,2,3,4,5,6],执行下列代码,运行结果为()。 list1=[1,2,3,4,5,6] for i in list1: if i % 2 == 0: print(i, end="")

A. 135
B. 246
C. [2,4,6]
D. [ ]

已知列表list1中元素如下代码所示,在执行下述代码后,list1的值为()。 List1 = ["C++","HTML","PHP","Java"] List1[2] ="Python"

A. ['C++', 'HTML', PHP', 'Java']
B. ['C++', 'HTML','Python','Java']
C. ['C++', 'Python','PHP','Java']
D. ['Java', 'PHP','HTML','C++']

已知列表list1 = [23,10,58,62,18,45],执行list1.reverse()命令后,list1的值为()。

A. [23,10,58,62,18,45]
B. [45,18,62,58,10,23]
C. [10,18,23,45,58,62]
D. [62,58,45,23,18,10]

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