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【单选题】
空载试运转主要是为了什么?
A.
确认电动机的转向
B.
对电动机的本体和其配套的所有电气设备作全面的检查
C.
初步鉴定电动机的电气和机械性能
D.
对电动机质量进行一次全面的检查和考验
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参考答案:
举一反三
【简答题】日本独特のサービスとはなんですか。
【单选题】听力原文:Thank you all for attending today' s meeting. I appreciate the fact that you are very busy, so I understand the sacrifice you have made today to be here. The reason we asked you here today is to ...
A.
To inform. workers that they will be interviewed
B.
To offer staff a pay raise
C.
To announce a round of layoffs
D.
To discuss a vacation schedule
【简答题】Hospital doctor: Hi, the 1 tells me that you probably have appendicitis.* Patient: I hope that s not true, but I think the 2 is in the right place for that. Hospital doctor: Can I take a look at you p...
【判断题】水在干净的玻璃毛细管中呈凹液面,因附加压力 D p < 0 ,所以表面张力 s < 0 。
A.
正确
B.
错误
【简答题】票据上有伪造、变造签章的,所有票据当事人的票据权利因此丧失。 ( )
【单选题】S1:You shouldn't eat so quickly!S2:I'm starving. And the food is so good that I can't help it.S1:Chewing your food well keeps you in good health.S2:I see.S1:Don't you like vegetables?S2:Yes,I do.Veget...
A.
It's delicious.
B.
It is nutritious.
C.
It's harmful.
D.
It can't be eaten in large amount.
【判断题】水在干净的玻璃毛细管中呈凹液面,因附加压力 Dp
A.
正确
B.
错误
【判断题】水在干净的玻璃毛细管中呈凹液面,因附加压力Δp<0,所以表面张力小于σ<0。
A.
正确
B.
错误
【单选题】经眶上裂入眶腔的神经不包括
A.
动眼神经
B.
滑车神经
C.
展神经
D.
眼神经
E.
上颌神经
【判断题】票据上有伪造、变造的签章的,票据上所有当事人的签章均无效。
A.
正确
B.
错误
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