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【单选题】
我国3~66kV的电力系统,特别是3~10kV电力系统,一般采用中性点不接地的运行方式。如果单相接地电流大于一定值时(3~10kV系统中单相接地电流大于30A;35kV及以上系统中单相接地电流大于10A时),应采用 运行方式。A.
中性点不接地的电力系统
B.
中性点经消弧线圈接地的电力系统
C.
中性点直接接地或经低电阻接地的电力系统
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举一反三
【单选题】At the conference, the speaker tried to______ his feelings concerning the urgency of passing the decisions.
A.
summon
B.
convey
C.
impose on
D.
affect
【简答题】节目播出编排
【简答题】Tom had prepared carefully for his English examination so that he could be sure of passing it on his first __________. A．intention B. attempt C. purpose D. desire
【单选题】Dickens' works are characterized by a mingling of ______ and pathos.
A.
humor
B.
satire
C.
passion
D.
metaphor
【单选题】听力原文：W: How did you do on the math exam, Jack? M: I barely made it. It was just a passing score but better than I had expected. Q: What do we learn from the conversation? (19)
A.
Jack did better than he thought he was able to do.
B.
Jack got an excellent score, which was unexpected.
C.
Jack didn't pass, although he had tried his. best.
D.
Jack was disappointed at his math score.
【简答题】试述糖皮质激素的药理作用、临床应用、不良反应。
【单选题】. ．—Dad，I’m worrying about my road test！ —Cheer up，dear! There___________be any difficulty about passing it since you have practised a lot in the driving school．
A.
mustn’t
B.
shan’t
C.
needn’t
D.
shouldn’t
【简答题】She was praised by her father for __________the exam. A) pass B) to pass C) to passing D) having passed
【简答题】Having a great collection of books at home doesn’t really mean that you are a person who has a passion for literature and reading． It can be a family inheritance or it can be just to impress people ar...
【单选题】Safety comes first. We should to keep safe on the road. ① obey the traffic rules ② be careful of passing cars and buses ③ run fast after others ④ not read the messages on our mobile phones ⑤ play bask...
A.
①②④
B.
①③⑤
C.
②④⑤
D.
②③④
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