A．He's a pupil.B．He's a teacher.C．He's a college student.D．He's a worker.
A. He's a pupil.
B. He's a teacher.
C. He's a college student.
D. He's a worker.
The advantage in the sharing of household tasks by the mother and father is that ______.
A. the role of the father may become a less important one
B. the children will grow up believing that life is a battle of the sexes
C. boys growing up in such families will not do any housework
D. the growing boy and girl will learn to accept that equality of sexes in family life
【B5】
A. be taking place
B. take place
C. be taken place
D. have taken place
某个企业的生产函数为q=20x1/3y2/3，其中x和y分别为要素x和y的投入量。假如企业目标是追求成本最小化，要素x的价格为要素y的价格的5倍，则企业的投入要素比例x/y等于()。
A. 0.12
B. 0.25
C. 0.1
D. 0.08
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