皮皮学，免费搜题
登录
搜题
【多选题】
下列关于三爪卡盘叙述正确的有( )。A.
卡爪能够同步运动，可以自动定心
B.
不可以装夹内工件
C.
夹持范围大，一般不需要找正
D.
定心精度存在误差，不适于同轴度要求高的工件的二次装夹
E.
夹紧力较小
手机使用
分享
复制链接
新浪微博
分享QQ
微信扫一扫
反馈参考答案：
举一反三
【单选题】W： Have you decided what to give your son for Christmas yet? M： _____________
A.
I don’t know Christmas is coming to us.
B.
Oh, sorry, haven’t yet. It’s a hard decision to make.
C.
You know, she has to decide it herself.
D.
You know, not every Chinese considers Christmas as a serious holiday.
【简答题】记名股票的特点不包括（ ）。
【单选题】听力原文：M: How do you feel about flying? W: I don't mind flying. What I don't like is not being able to keep an eye on my luggage. Whenever the man at the airport hakes my luggage, I never expect to see ...
A.
The likelihood of losing her luggage.
B.
The possibility of taking a wrong flight.
C.
The difficulty in communicating with others.
D.
The unfriendliness of the porter at the airport.
【单选题】I don’t know the reason you were late for the meeting, but I’m sure someone will tell me you don’t want to explain.
A.
why; that
B.
why; what
C.
for which; which
D.
for which; that
【单选题】—Don't do that again. Shame on you! —_______ [ ]
A.
Sorry, I won't.
B.
Sorry, I don't.
C.
All right, I won't.
D.
OK, I won't.
相关题目：
参考解析：
知识点：
题目纠错 0
发布
