银汞合金窝洞充填的固位力主要是() A.机械固位力 B.黏着力 C.大气压力 D.聚 发布时间:2017-08-04 21:31 │ 来源:www.tikuol.com 题型:单项选择题 问题: 银汞合金窝洞充填的固位力主要是()A.机械固位力B.黏着力C.大气压力D.聚合膨胀产生的压力E.范德华力
题型:单项选择题 — Can we let these new graduates take on the task? — I'm afraid not. While they are energetic and ambitious, ____ of them seems to be suitable for this demanding job.[ ]A. no one B. anyone C. none D. few 查看答案