Scientists are convinced the positive effect of laughter physical and mental health.
A. of ;at
B. by; in
C. of ; on
D. on ;at
Scientists are convinced the positive effect of laughter physical and mental healthA. of
答案:2 悬赏:10 手机版
解决时间 2021-04-12 22:51
- 提问者网友:风月客
- 2021-04-12 19:36
最佳答案
- 五星知识达人网友:神的生死簿
- 2021-04-12 21:01
A. of ;at B. by; in (答案→)C. of ; on D. on ;at解析:考查介词。be convinced of相信,名词effect后接on,故选C。
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- 1楼网友:你可爱的野爹
- 2021-04-12 21:38
就是这个解释
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