皮皮学，免费搜题
登录
搜题
【多选题】
多油断路器中的油可作为（）用。A.
灭弧介质；
B.
触头间隙、带电部分与地之间的绝缘介质；
C.
冷却；
D.
防氧化。
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
【简答题】CR 系统主要是由( )、( )、( )和( )组成。
【简答题】Thomas Edison was born in America. He invented plenty of electric appliances(电器) and people from all over the world know him. At that time, there was no electric lamp in the world. And it brought peop...
【简答题】CR系统主要由X线机、（）、（）、影像后处理工作站和存储装置等组成。
【单选题】LOC方式的子方式有（）
A.
LOC预位、LOC截获、LOC在航道上
B.
LOC截获、LOC在航道上
C.
LOC预位、LOC截获
D.
LOC预位、LOC截获、着陆
【单选题】What do you know about Joe?
A.
He is a mechanic.
B.
He can fit up electric lighting.
C.
He works very hard.
D.
All of the above.
【单选题】Edison failed _____ times before he succeeded in producing the first electric lamp .
A.
thousand
B.
thousands
C.
a thousand of
D.
thousands of
【单选题】Mr Miller had known a lot about carpentry and electric wiring before he was engaged in do-it-yourself.
A.
Right
B.
Wrong
相关题目：
参考解析：
知识点：
题目纠错 0
发布
