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【简答题】
石灰岩的主要矿物成分是( ) A石英 B方解石 C白云石 D长石
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举一反三
【单选题】The parties and trips the Manhattan Sailing Club hosts aim to
A.
provide the members with field training.
B.
offer the members a chance to enjoy the sports.
C.
form. a casual social atmosphere among the members.
D.
give the elderly members a different experience.
【单选题】From the description of the efforts in the House, we can see that
A.
the members of the House really speak for the general public.
B.
the Congressmen are tough to the sulfur polluters in the U.S.
C.
the statesmen try to please the public without enraging the bosses.
D.
the politicians worry about the effect of emission-control legislation.
【单选题】What did the native guides do to help the members of the team during the trip?
A.
They encourage the team members when they were in danger and difficulties and took care of them.
B.
They cooked for them.
C.
They explored the route for them.
D.
They discussed future plans with them.
【多选题】预防低压配电屏（盘）发生火灾的措施有（）。
A.
正确安装接线，防止绝缘破损，避免接触电阻过大；
B.
装在清洁干燥场所，定期检查；
C.
连接导体在灭弧装置上方时，应保持一定飞弧距离，防止短路；
D.
防止过负荷。
【简答题】汽车空调系统主要由 、 暖风装置 、 通风装置 、 控制装置 和 加湿装置、空气净化装置等部分组成。
【单选题】The members of the House of Commons were shocked when the opposition speaker the character of the Prime Minister.
A.
mentioned
B.
disputed
C.
lauded
D.
doubted
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