题目内容

range(1,20,8) creates a sequence of which numbers?

A. [0,8,16]
B. [1,9,17]
C. [0,8,16,24]
D. [1,9,17,25]

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What does arr[-2] return given the array ‘arr = [2,4,6,8,10]’?

A. 2
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C. 6
D. 8
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F. Index out of bounds error

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A. [x for x in arr if x%2==0 in arr]
B. [2*x for x in arr if x<6 in arr]
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