桩冠的固位力不包括A.范德华力 B.摩擦力 C.约束力 D.粘结力 E.吸附力 发布时间:2017-05-21 01:59 │ 来源:www.tikuol.com 题型:单项选择题 问题: 桩冠的固位力不包括A.范德华力B.摩擦力C.约束力D.粘结力E.吸附力
题型:单项选择题 —Who is suitable for the new chairperson of the Students' Union? —David is. He is _______ enough to come up with new ideas. [ ]A. imaginative B. humorous C. modest D. outgoing 查看答案