皮皮学，免费搜题
登录
搜题
【单选题】
凡开关上标有两种组合额定电压和额定电流的，每种组合均要（）试样来进行除荧光灯负载用开关的正常操作之外的所有有关试验，荧光灯负载用开关的正常操作的试验要用两组（代号为2的开关则用4组）每组3个的附加试样。标出250/380V的开关按380V的开关来试验。A.
2个
B.
3个
C.
5个
D.
7个
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】---Mr Ding,I have some trouble ______the passage! ----Remember _____it three or four times at least ! A,to understand ,reading B.understanding ,reading C,understanding ,to read ...
【单选题】At least ( ) cylinders in a four-stroke engine will be configured to ensure thatthe engine can be started with crankshaft at whatever position
A.
4
B.
6
C.
8
【单选题】Bad weather _______ into consideration , we may need at least four days to arrive .
A.
take
B.
taken
C.
to be taken
D.
to take
【简答题】---Mr Ding,I have some trouble ______the passage! ----Remember _____it three or four times at least ! A,to understand ,reading B.understanding ,reading C.understanding ,to read ...
【简答题】上海有些人把话剧称之为新剧,又称________。
【单选题】In 1985, 56% of the newly rich Europeans went on holiday at least ______.
A.
four times
B.
three times
C.
twice
D.
once
相关题目：
参考解析：
知识点：
题目纠错 0
发布
