What we have to admit is that never in the past thirty years _______ so greatly as today.[ ]

A. did China change

B. China has changed

C. has China changed

D. China had changed

化妆品按使用目的可分为（）。

A.洗净用化妆品

B.基础化妆品

C.美容化妆品

D.芳香类化妆品

E.特殊功能化妆品