劳动力市场制度建设包括()。
A.劳动力流动制度
B.社会保障制度
C.就业制度
D.收入分配制度
E.改革用工制度
参考答案:A, B, D
(3x+5y)-______=9x2-25y2.
You have to eat _____ and take more _____ if you want to be _____. [ ]
A. fewer; exercises; healthy
B. less; exercises; heath
C. less; exercise; heath
D. less; exercise; healthy