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搜题
【单选题】
工厂高压线路的反时限过电流保护装置的动作具有A.
动作时间与短路电流大小成反比
B.
短路电流超过整，动作时间是固定的
C.
短路电流超过整就立即动作
D.
短路电压超过整，动作时间是固定的
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皮皮学刷刷变学霸
举一反三
【单选题】—Excuse me，may I have a word with Mr. Zhang？ —I’m afraid he’s not_______now．He’s having a class upstairs．
A.
comfortable
B.
suitable
C.
available
D.
acceptable
【简答题】What was the subject of the book that the writer was planning to write?
【单选题】I don't know ________, but I guess he may be a teacher. [ ]
A.
what is he
B.
how he does it
C.
what he does
D.
what does he do
【单选题】What was the subject of the lecture?
A.
The solar system.
B.
Two theories about the universe.
C.
The temperature of the Moon.
D.
The natural laws.
【单选题】－Hello, May I speak to Daniel? －__________.
A.
Sorry, he’s not at home. Who’re you?
B.
Sorry, he’s not at home. Who’s that speaking, please?
C.
Sorry, you can’t.
D.
Sorry, you mustn’t.
【多选题】图集16G101-2（现浇混凝土板式楼梯）中，板式楼梯梯板的类型包括（ ）。
A.
7 种不考虑抗震的类型
B.
4 种不考虑抗震的类型
C.
5 种考虑抗震构造措施的类型
D.
1 种参与抗震计算的类型
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