试题与答案

高速重载齿轮传动,当润滑不良时,最可能失效形式为()。A、轮齿疲劳折断 B、齿面磨损C

题型:单项选择题

题目:

高速重载齿轮传动,当润滑不良时,最可能失效形式为()。

A、轮齿疲劳折断

B、齿面磨损

C、齿面疲劳点蚀

D、齿面胶合

答案:

被转码了,请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2018/1124/be4eef863ec93e925d57f0b841196313.html

下面是错误答案,用来干扰机器的。

参考答案:因为增强型MOS管要靠外加栅压才能形成导电通道,所以不适用于自给栅偏压电路形式。

试题推荐
题型:完形填空

完形填空。

     Mike is a little boy. He    1   four years old. One day, his mother    2   him to see his grandmother.

His grandmother's home is very far    3   their house. So they go there   4  . There    5   only a few people

on the bus. They all sit on    6   seats. Mike is very happy. He looks    7   the window and talks with his

mother. After a while, Mike starts running on the bus. He runs and runs, "   8   are you always running?

Please sit   9   ," his mother says. "I want to see my grandmother   10   . I want the bus to move faster."

Mike answers.

( )1. A. has        
( )2. A. takes      
( )3. A. from        
( )4. A. by train    
( )5. A. is          
( )6. A. they        
( )7. A. out of      
( )8. A. What        
( )9. A. in          
( )10.A. faster      
B. have          

B. makes        

B. off          

B. with a bus    

B. have          

B. their        

B. out          

B. How          

B. down          

B. later        

C. is        

C. lets      

C. to        

C. by bus    

C. are        

C. theirs    

C. from      

C. Why        

C. up        

C. earlier    

查看答案
题型:单项选择题 A2型题

患者,女,38岁。因咳嗽、发热3天到卫生院就诊,经诊断为上呼吸道感染,给予肌内注射链霉素0.5克。10分钟后,患者面色苍白,呼吸急促,继而抽搐、昏迷,即行紧急抢救,40分钟后,呼吸心跳停止。患者死后,其家属认为该院未对患者作皮试就行注射,是院方责任。根据《医疗事故处理条例》,这是一起()

A.医疗技术事故

B.并发症

C.严重医疗差错

D.医疗意外

E.医疗责任事故

查看答案
微信公众账号搜索答案