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【多选题】
二级维护以( )为作业中心内容A.
检查、调整安全部件
B.
拆检轮胎
C.
调整发动机工况
D.
检查排气污染控制装置
E.
轮胎换位
F.
一级维护作业内容
手机使用
分享
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新浪微博
分享QQ
微信扫一扫
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举一反三
【简答题】If you are hurt in the chat room by others, you should______. [A] fight back in the same way [B] take them seriously [C] have none of them [D] be angry at them
【单选题】You can either have the double room or the family room,________ you want.
A.
whichever
B.
whatever
C.
whenever
D.
however
【单选题】听力原文：WA Ralph, I meant to ask you about the picture frame. you gave Simone. Where did you buy it? MB I bought it at Perfect Home. There were a few other styles that were nice too, but I liked that one...
A.
A mug
B.
A clock
C.
A brief case
D.
A picture frame
【简答题】三极管有放大作用的外部条件是发射结( ),集电结 ( )
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