Every student is required to watch the teacher carefully before the chemistry experiment.
A. performing
B. taking
C. picking
D. having
Every student is required to watch the teacher carefully before the chemistry experiment.
答案:2 悬赏:30 手机版
解决时间 2021-12-28 10:27
- 提问者网友：嘚啵嘚啵
- 2021-12-27 20:51
最佳答案
- 五星知识达人网友：英雄的欲望
- 2021-12-27 21:18
(答案→)A. performingB. takingC. pickingD. having解析：本题考查动词辨析。句意为：在操作化学实验之前，每个学生 必须认真观察教师的示范动作。perform表演；操作。
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- 1楼网友：零点过十分
- 2021-12-27 21:43
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