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【单选题】
低压电器,因其用于电路电压为( ),故称为低压电器。A.
交流50Hz或额定电压1000V及以下，直流额定电压1200V及以下
B.
交直流电压1200V及以下
C.
交直流电压500V及以下
D.
交直流电压3000V及以下
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【单选题】－－－－Do you often enjoy listening to the rock music in your spare time? －－－－No, I don’t ______ ro
A.
21. ----Do you often enjoy listening to the rock music in your spare time? ----No, I don’t ______ rock music. It’s much too noisy for my taste. A．go after.
B.
go on with
C.
go about
D.
go in for
【简答题】It was Allan's (1)________ time to go traveling (2)________ air. He felt (3)________ (excite) but he could not find his seat, (4)________ he asked the air hostess, “Could you help me? I can't find my ...
【单选题】(3.4题共用题干) 李某,18岁,患急性扁桃体炎,医嘱青霉素皮试。 3.配置青霉素皮试液时,其皮内注射剂量为( )
A.
10U
B.
50U
C.
100U
D.
500U
E.
2500U
【简答题】I . 根据句意及所给汉语提示,写出句中所缺单词。 1. We all know his two sons are fantastic ________ ( 魔术师 ). 2. Both of the twins are the ________ ( 获胜者 ) in the competition. 3. In Africa, some people live a(n) ________ ( 贫...
【简答题】他搬起石头砸了自己的脚。 He lifted a rock __________(d ro p) it on his own feet.
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