The scientists are studying the effects of human activitiesthe environment.A. inB. atC. on

发布时间：2020-08-17 12:30:50

The scientists are studying the effects of human activities    the environment.
A. in
B. at
C. on
D. with

网友回答

A. in
B. at
(答案→)C. on
D. with
解析：此处所填的介词与effects搭配, 对……的有影响, 用 effect on/upon表示。我们也可以联想所学短语 have an effect on sth。
以上问题属网友观点，不代表本站立场，仅供参考！