In this densely populated city acid rain is ______; it is a sign both of industrializatio

学历类 自考英语 已帮助 人

In this densely populated city, acid rain is ______; it is a sign both of industrialization and pollution.

A.prevalent

B.productive

C.popular

D.possible

热搜:在公制与英制换算中,1in等于()。