明四家是指？
参考答案：
文徵明、沈周、唐寅、仇英。
Smoking is bad for your dad's health. You'd better ask him to ______. [ ]
A. give up it
B. give it up
C. take out it
D. take it out
果糖双磷酸酶-1的别构抑制剂是（）。
A.AMP
B.ADP
C.ATP
D.GDP
E.GTP
