已知列表 x = [1, 2],那么连续执行命令 y = x 和 y.append(3) 之后,x的值为________。A. [1,2,3]B. [1,2]C. [1,2,[3]]D. False
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已知 x = [[1,3,3], [2,3,1]],那么表达式sorted(x, key=lambda item:item[0]+item[2])的值为______________________________________。A.[[2,3,1], [1,3,3]]B.[[1,3,3],[2,3,1]]C.NoneD.[3,4]
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表达式 [i for i in range(10) if i>8] 的值为________________。A.'9' B.9 C.[9] D.None
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下面代码>>> x = ((i+2)**2 for i in range(10))>>> xA. (4, 9, 16, 25, 36, 49, 64, 81, 100, 121)B. [4, 9, 16, 25, 36, 49, 64, 81, 100, 121]C. 4, 9, 16, 25, 36, 49, 64, 81, 100, 121D. at 0x000002A6BC2B0D00>
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已知x = {1:1, 2:2},那么执行语句x[3] = 3之后,表达式sorted(x)的值为____________________。A.[1, 2, 3] B.(1, 2, 3) C.{1:1,2:2,3:3} D.[(1, 1), (2, 2), (3, 3)]
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