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【单选题】
在机床电气控制线路中,热继电器作 保护.A.
短路
B.
过载
C.
欠压
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反馈参考答案：
举一反三
【单选题】Which floor does Linda live on?
A.
The fourth floor.
B.
The sixth floor.
C.
The fifth floor.
【简答题】Over forty years (pass) ______ since the first bridge was built in the district.
【单选题】He didn’t tell me _______.
A.
which floor did he live on
B.
which floor he lived on
C.
which floor he lived
D.
Which he lived on the floor
【单选题】________I met him，he was working as a secretary in a big company.
A.
Since the first time
B.
The first time
C.
For the first time
D.
The first time which
【单选题】The teacher knows that you are always the first ________ to the classroom since last september.
A.
coming
B.
to come
C.
came
D.
has come
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