A．不变
B．一直下降
C．一直升高
D．先下降后又升高
答案：D
真性性早熟发病率近年有逐渐上升的趋势，女孩发病率为男孩发病率的（）倍。
A.1.5
B.2
C.2～3
D.4～5
E.10
It is the ability you have _____ matters, not where you graduate from or what you look like.
A．which
B．that
C．what
D．it
