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【单选题】
typeof parseInt("xa123")的结果是A.
number
B.
null
C.
undefined
D.
FALSE
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举一反三
【简答题】已知x为非空列表，那么执行语句y=x[:]之后，id(x[0])==id(y[0])的值为__________。
【简答题】The day when the jobs were handed out was one of the most exciting moments for all the children in the class. It took place during the first week of the term. Every kid was given a job for which they ...
【简答题】大循环起于（ ）。 查看材料
【简答题】巧用方法求总和． 450 460 470 480 490 500 510 520 530
【单选题】Ernie's utility function is U (x; y) = xy. Ernie consumes 4 units of x and 16 units of y.
A.
Ernie would be willing to make small exchanges of x for y in which he gives up 4 units of x for every unit of y he gets.
B.
Ernie would be willing to trade away all of his x for y so long he gets more than 4 units of y for every unit of x he gives up.
C.
Ernie likes x and y equally well so he is always willing to exchange 1 unit of either good for more than one unit of the other.
D.
None of the above.
【单选题】Ernie's utility function is U (x,y) = xy. Ernie consumes 4 units of x and 16 units of y.
A.
Ernie would be willing to make small exchanges of x for y in which he gives up 4 units of x for every unit of y he gets.
B.
Ernie would be willing to trade away all of his x for y so long he gets more than 4 units of y for every unit of x he gives up.
C.
Ernie likes x and y equally well so he is always willing to exchange 1 unit of either good for more than one unit of the other.
D.
None of all
【简答题】2017年山东卷高考作文题目:回头却不是从前。作文原材料:不要回头看,因为逝去的风景已不再属于你。
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