试题与答案

电机转速越高,要求安装精度越高,震动要求也越高;轴承的质量、安装、润滑是保证电机长周

题型:判断题

题目:

电机转速越高,要求安装精度越高,震动要求也越高;轴承的质量、安装、润滑是保证电机长周期运行必不呵少的条件。

答案:

参考答案:对

试题推荐
题型:填空题

把正确答案的序号填在横线上。

① 撞 ② 辫 ③ 暑 ④ 撕 ⑤ 财 ⑥ 换 ⑦ 窄 ⑧ 踩

⑨ 筑 ⑩ 绚  峰  型  色  性 

翘舌音:                                            

前舌音:                                            

平舌音:                                            

后鼻音:                                            

查看答案
题型:完形填空
Jerry was always in a good mood.       someone was having a bad day, Jerry would tell him how to look on the positive(积极的)side of the situation.
One day I asked him, “How can you be positive all the time?”
Jerry replied, “Each morning, I say to     , ‘Jerry, you have two choices today. You can choose to be in a good mood or in a bad mood.’ I choose to be in a good mood.”
Several years later, I heard Jerry was hurt     three robbers(强盗). Luckily, Jerry was sent to the    quickly.
I asked him what his thought was when the robbery took place. Jerry replied, “As I    on the floor, I remembered I could choose to live or to die. I choose to live.”
“Weren’t you      I asked.
“Yes, I was really afraid when I saw the expressions on the      of the doctors.”
“What did you do?” I asked.
“When a nurse asked if I was allergic(过敏的)to    . I shouted, ‘Bullets(子弹)!’ Over their laughter, I told them,     
Thanks to the super medical     of his doctors, Jerry lived, but also because of his amazing attitude, Attitude, after all, is everything.
小题1:
A.If B.After C.Though D.Since
小题2:
A.himself B.itself C.myself D.yourself
小题3:
A.in B.with C.for D.by
小题4:
A.school B.hospital C.bank D.court
小题5:
A.lay B.ran C.danced D.walked
小题6:
A.sad B.awake C.afraid D.excited
小题7:
A.hands B.faces C.heads D.arms
小题8:
A.nowhere B.nothing C.anywhere D.anything
小题9:
A.live B.decide C.depend D.feed
小题10:
A.research B.place C.skill D.position
查看答案
微信公众账号搜索答案