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 河南成教 / 机械设计基础
正确率:100%

3、
对于载荷不大,多支点的支承,宜选用(   )


A.深沟球轴承

B.调心球轴承

C.角接触球轴承

D.以上均不宜选用


  积分
 参考答案:
 佳题速递:
  • “用古题写时事”是________的文学主张。 中国古代文学(上)
  • 凡是醛在稀碱溶液中都可以发生羟醛缩合反应正确错误有机化学(药学专)
  • 全局观念是指从组织整体和长期的角度,进行考虑决策、开展工作,保证企业健康发展正确错误职位分析与评估
  • 1. I _ _ _ _ _ (listen) to the radio when you rang the bell the first time, and that’s why I did not hear you.2. If you _ _ _ _ _ not (tell) Jackie what I said, everything would have been all right.3. He will be giving lectures on the tour. By the end of the tour he _ _ _ _ _ _ (give) exactly the same lecture 50 times.4. It is necessary that every member _ _ _ _ (inform) himself of these rules.5. It is high time you _ _ _ (stop) doing this translation.6. Don’t take his remarks too seriously. He was so upset that I don’t think he really _ _ _ _ _ (know) what he was saying.7. Please remember _ _ _ _ _ _ (post) the letter for me.8. They _ _ _ _ _ _ _ (catch) in a snowstorm on their way home last month.9. It took me two hours _ _ _ _ _ (get) my 3-year-old daughter to sleep10. My butterfly garden has a sign which _ _ _ (say) “Butterflies Welcome”.大学英语语法
  • 教育理论是一个综合性的概念,是指教育科学知识的总和。 小学学校管理
  • 勒沟为水平方向走行,呈闭锁式,如“O”字形,深度均匀一致。( )正确错误法医学