Such problems______air pollution and traffic jams are becoming more and more serious in so

学历类 专四 已帮助 人

Such problems______air pollution and traffic jams are becoming more and more serious in some big cities.

A.like

B.about

C.as

D.of

请帮忙给出正确答案和分析,谢谢!

热搜:关于氨基酸代谢错误的论述是_________。