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【单选题】
下列关于发动机电气系统的说法哪错误的A.
汽车发电机有发电、整流、调压的作用。
B.
启动发动机时，黄色的充电警告灯便会熄灭。
C.
点火线圈通过初级线圈和次级线圈的互感现象产生高电压。
D.
免维护蓄电池充电时产生较普通蓄电池较少的气体。
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举一反三
【单选题】听力原文：M: I just came back from a trip to China and I was very impressed with the long history of that country. W: Last year I visited Europe. It was interesting to see the ancient ruins there, too. M: ...
A.
Chinese ancient history.
B.
European history.
C.
American native civilization.
D.
American history.
【简答题】砂轮的特性主要由、、、和等因素决定。
【单选题】听力原文：M: I've just got back from the holiday you arranged for me, but I must tell you the hotel was really awful! It was miles from the sea. The food was awful too. The bedroom was dirty. W: Sorry abou...
A.
At the airport.
B.
In a travel agency.
C.
In a hotel.
D.
At home.
【单选题】听力原文：M: I've just got back from the holiday you arranged for me, but I must tell you the hotel was really awful! It was miles from the sea. The food was awful too. The bedroom was dirty. W: Sorry abou...
A.
At the airport.
B.
In a travel agency.
C.
In a hotel.
D.
At home.
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