皮皮学，免费搜题
登录
搜题
【单选题】
负序(逆序)继电器用于__,其作用__。A.
短路保护/保护发电机
B.
过载保护/保护电网
C.
逆功率保护/保护电网
D.
逆相序和断相保护/保护电网负载
拍照语音搜题，微信中搜索"皮皮学"使用
参考答案：
参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【多选题】Listen to the conversation and match the relevant information with Peter
A.
The general manager
B.
Consumer Electronic show
C.
Project manager
D.
Hear project manager's opinion about some new projects
【简答题】Match the main s with relevant paragraphs.
【简答题】Match the activities with the relevant classroom arrangement
【简答题】Match the word or words with relevant pictures.
【多选题】Listen to the conversation and match the relevant information with Brian
A.
The general manager
B.
Consumer Electronic show
C.
Project manager
D.
Hear project manager's opinion about some new projects
【简答题】Match the holiday activities with the relevant expression.
【简答题】如何修改刚启动PCCAD2004里面的一些设置，如：图层、文字样式、标注样式等等？
【简答题】Match the sport s with the relevant pictures
【单选题】Match relevant to it's Chinese meaning
A.
特性；属性
B.
苗条；细长
C.
做除法
D.
趋势
E.
有关的
F.
非常地
G.
管状的
【单选题】In our company , great changes since the new manager came .
A.
took place
B.
take place
C.
will have taken place
D.
have taken place
相关题目：