风机电机地脚固定螺栓松动可导致()。A、风量减小 B、电机过热 C、电机震动噪音加大

题型:单项选择题

问题:

风机电机地脚固定螺栓松动可导致()。

A、风量减小

B、电机过热

C、电机震动噪音加大

D、轴承损坏

考点:聚丙烯酰胺装置操作工聚丙烯酰胺装置操作(初级工)聚丙烯酰胺装置操作(初级工)题库
题型:单项选择题

认真阅读,根据文章内容,从A、B、C、D选项中,选择最佳答案。

Mrs. Brown lives in a small village. Her husband is dead. She has a son but no daughters. His name is John and he is twenty-five. After John finishes college (大学), he gets work in a big city, New York, and he lives there. It’s quite a long way from his mother’s home, and she is not happy about it. But John says, “There is no good work for me in this small village, Mother, and I can get a lot of money in New York. Then I can give much to you.”

One day Mrs. Brown is very angry. She takes a train to her son’s house in New York. Then she says to him. “John, why do you never call me?”

“But mother,” John laughs (笑) and says, “You don’t have a telephone with you.”

“No,” she says, “I haven’t, but you have one.”

小题1:Where does Mrs. Brown live?

A.In a small village

B.In a big city

C.In New York

D.In a town小题2:What is Mrs. Brown’s son’s age?   

A.20

B.21

C.25

D.13小题3:How does Mrs. Brown go to New York one day?

A.On foot

B.By bus

C.By bike

D.By train小题4:Why does John never call his mother?

A.John doesn’t want to do that

B.John has no telephone

C.His mother has no telephone

D.His mother doesn’t want to answer小题5:Which is right?

A.The village is near New York

B.John works in a big city and his mother likes it

C.In the village there is no good work for John

D.John never gives money to his mother.

题型:单项选择题

上述哪种肿瘤的组织发生来自闰管储备细胞()

A.皮脂腺腺瘤

B.嗜酸性腺瘤

C.黏液表皮样癌

D.Warthin瘤

E.多形性腺瘤

题型:单项选择题

急性肾衰竭无尿期或少尿早期,发生水中毒的常见原因是()

A.内生水增多

B.低蛋白血症

C.血管升压素(抗利尿激素)增加

D.不适当输入过多水分

E.出汗太少

题型:单项选择题

关于自理报检单位备案登记,以下表述正确的有( )。

A.自理报检单位首次办理报检业务前需办理备案登记手续

B.自理报检单位应向报检业务发生地检验检疫机构申请备案

C.申请备案登记的单位应有一名以上持有“报检员资格证书”的人员

D.自理报检单位备案登记后,可在任一检验检疫机构办理自理报检业务

题型:单项选择题

简述企业债券发行的目的。

更多题库