皮皮学，免费搜题
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【判断题】
漏电保护开关既可用来保护人身安全,还可对漏电开关下方的低压系统或设备的绝缘状况起到监督作用。A.
正确
B.
错误
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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】改善晶体管大电流特性的主要技术途径包括：
A.
增加发射结的结面积；
B.
增加发射极总条长；
C.
采用多发射极条，使得单根发射极条长不要太长；
D.
减小基区串联电阻；
【单选题】—Can I help you ? —I want _________these nice roses for Lucy’s birthday .
A.
two dozen of
B.
two dozen
C.
two dozen
D.
two dozens of
【简答题】- Which of the two books do you want - I want ______. Please show me ______. A) none; another B) all; the other C) neither; the other D) neither; another
【单选题】—What can I do for you, sir? —I want ______. [ ]
A.
two shoes
B.
two pairs of shoes
C.
two pair of shoe
D.
two pair of shoes
【单选题】I want to have _____ for breakfast this morning. [ ]
A.
two bread
B.
two slices of bread
C.
two slice of bread
D.
two slices of breads
【单选题】I am thirsty. I want to buy _____. [ ]
A.
two bottles of oranges
B.
two bottles of orange
C.
two bottle of oranges
D.
two bottle of orange
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