题目内容

Who is eligible to participate in the Contest?

A. Someone who is staying in the United States.
B. A US citizen
C. An Italian who is having tour in Orange County
D. A US citizen above 18

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What reward will the first-prize winner get?

A. $150
B. A gold medal
C. Two T-shirts decorated with the winner's name
D. A certificate

列表lst=range(1,10),(1) lst转为3行3列的numpy多维数组后得到data；(2) 求出data每行的和赋给变量rowSum;(3)请写出变量data，rowSum和np.argsort(3, 1, 2)的值。

假设属性income的最大最小值分别是12000元和98000元。利用最大最小归一化方法将属性的值映射到0至1的范围内。对属性income的73600元将被转化为：()

A. 0.821
B. 1.224
C. 1.458
D. 0.716

python list中的元素是否必须是同一类型

A. 是
B. 否