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【单选题】
佩戴以下那种物品不影响进行发动机拆装( )。
A.
钥匙
B.
手表
C.
帽子
D.
项链
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【单选题】固定式离心式压缩机的叶轮般采用 ( )。
A.
前弯叶片式
B.
后弯叶片式
C.
径向直叶片式
D.
径向弯叶片式
【单选题】固定式离心式压缩机的叶轮一般采用()
A.
前弯叶片式
B.
后弯叶片式
C.
径向直叶片式
D.
径向弯叶片式
【单选题】关于燃气加压机,下列叙述不正确的为( )。
A.
螺杆式压缩机多采用多级叶轮串连成离心式压缩机组
B.
容积型压缩机主要有活塞式、罗茨式、螺杆式和滑片式压缩机
C.
速度型压缩机主要是离心式压缩机
D.
燃气加压机类型很多,基本上有两大类:容积型压缩机和速度型压缩机
【单选题】离心式压缩机叶轮入口侧与壳体之间的密封通常采用()形迷宫密封。
A.
曲折
B.
平滑
C.
阶梯
D.
A和B均可
【简答题】“ I took it home with me. ” she said. She said that ______ ______ _______ it home with her.
【简答题】She said she had been waiting for an hour. It was true. 改: She said she had been waiting for an hour,_______________________.A. which was true
【简答题】“So what if the guy threw his shoe at me?ˮ Bush told a reporter in (respond) _________ to a question about the incident.
【单选题】“So what if the guy threw his shoe at me?” Bush told a reporter in response to a question about the incident.该短语的同义表达为_________
A.
when posing
B.
when asking
C.
when answering
D.
when avoiding
【简答题】Have you ever known anyone famous? If so, you may have found that they are remarkably similar to the rest of us. You may have even heard them 1 to people saying there is anything different about them....
【简答题】A. The Nose Knows Read the following paragraphs carefully. Then fill in each blank with a word from the box. Use each word once. 从以下单词中选择填空,完成短文。 curious fact odors suggest Have you ev...
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