皮皮学，免费搜题
登录
搜题
【单选题】
直流断路器应具有（）和反时限过流保护功能，当不满足选择性保护配合时，应增加短延时电流速断保护直流断路器额定电压应大于或者等于回路的最高工作电压，额定电流大于回路的最大工作电流。A.
瞬时电压速断
B.
瞬时电流速断
C.
限时电流速断
D.
限时电压速断
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】What is the writer of this passage attempting to do?
A.
Explain how present day reading habits developed.
B.
Change people’s attitudes to reading.
C.
Show how reading methods have improved.
D.
Encourage the growth of reading.
【单选题】What do Europeans think of the custom of wearing hijab?
A.
They respect it.
B.
They dislike it.
C.
They are going to ban it.
D.
They have different opinions about it.
【单选题】Where does the name Titanic originate from?
A.
The company’s name
B.
The designer’s name
C.
Greek mythology
D.
American mythology
【单选题】Where does the name ‘pub’ come from?
A.
public house
B.
public bar
C.
People United Brewery
D.
People house
【单选题】Where does the name ‘Halloween’ come from?
A.
Hello"Ween"(the name for a ghost)
B.
the name of an old Celtic leader
C.
All Hallow's Eve
【单选题】Where does the name Watergate come from?
A.
A military operation
B.
A video game
C.
A man named Bill Watergate
D.
A complex of office buildings
【单选题】What made it possible for the American women to have the custom of wearing lace veils at weddings?
A.
The increased appreciation of lace.
B.
The importation of lace.
C.
The invention of the lace making machine.
D.
The importation of lace making machines.
相关题目：
参考解析：
知识点：
题目纠错 0
发布
