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【单选题】
闸阀的代号是()。
A.
Z
B.
H
C.
Q
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参考答案:
举一反三
【单选题】Put these books ________ you can find them easily.
A.
when
B.
because
C.
where
D.
which
【判断题】任何一个二端网络,都可以用一个电压源模型代替。
A.
正确
B.
错误
【判断题】任何一个二端网络,都可以用一个电压源模型代替。
A.
正确
B.
错误
【简答题】Put these books back immediately ____ they belong.
【单选题】— Where can I keep these books? — Here is a box full of bananas. You can it and put the books in. [     ]
A.
throw
B.
empty
C.
sell
D.
bring
【单选题】They put these books ______ so the room looked neater than before.
A.
off
B.
in
C.
on
D.
away
【简答题】Put these books away on the shelf, please.(改为同义句) _____ _____ these books on the shelf, please.
【单选题】—May I put these books here, sir? —Yes, please. Just put____on the shelf. [     ]
A.
they
B.
them
C.
their
D.
theirs
【判断题】任何一个二端网络,都可以用一个实际电压源模型代替。
A.
正确
B.
错误
【简答题】Put these books on the top of the others. ____
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