超星 - homework1

单选题

Select the correct statement.

A. Break ends the loop, ignoring the loop condition
Break ends the loop, ignoring all further statements
Continue goes back to the start of the loop
D. All of the above

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单选题

range(3) creates a sequence of which numbers?

A. [1,2,3]
B. [0,1,2,3]
C. [0,1,2]
D. [1,2]

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单选题

range(2,5) creates a sequence of which numbers?

A. [0,2,4]
B. [2,3,4,5]
C. [2,3,4]
D. [2,4]

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单选题

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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单选题

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

A. 2
B. 4
C. 6
D. 8
E. 10
F. Index out of bounds error

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单选题

Which of the following commands gives us all even numbers from the array ‘arr = [0,1,2,…,10]?

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

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