—What about your hometown these years?

—Oh, it's becoming _____.  [ ]

A. more beautiful and more beautiful   

B. more and more cleaner

C. more and more beautiful            

D. clean and clean

关于三相气雾剂描述错误的是（）

A.一般指混悬型气雾剂与乳剂型气雾剂

B.一般由气-液-液，气-液-固三相组成

C.在气-液-固中固相是难溶性药粉

D.在气-液-固中气相是抛射剂所产生的蒸气

E.在气-液-固中液相是抛射剂