由于定子磁场的不平衡或转轴本身带磁,所以在转轴上总会感应一定的电压,称为轴电压,其数

题型:判断题

问题:

由于定子磁场的不平衡或转轴本身带磁,所以在转轴上总会感应一定的电压,称为轴电压,其数值一般不大于10V。

考点:热力发电厂机炉电考试蒸汽机测点及继电保护蒸汽机测点及继电保护题库
题型:判断题

阅读理解。

     Mr Gao lives in a town. When he was twenty-five, his son was born. He calls him Gao Ling.

The little boy is clever and his parents love him very much.        

     It's September lst today. A new school year begins. Gao Ling is happy and wears his most

beautiful clothes. He is going to school with his new bag.        

     "Let me take you to school, dear," said Mrs Gao.        

     "Thank you, Mummy,"said the boy," The school is not far from here, I can go there myself."        

     At school a teacher met the little boy and asked," what's your name, my Little friend?"        

     "Gao Ling, sir," answered the boy.        

     "How old are you?"      

     "Six, sir"      

     "What's your father's name?"      

     "Gao Dalin, sir"      

     "How old is he?"      

     "He's six too, sir"    

     "Oh," The teacher said in surprise(惊讶地)." Is he as old as(与…一样大)you? 

     "Yes, sir," said the boy." He became a father only at that time when I was born."      

1. Mr Gao is _____ now.    

A. six

B. twenty-five

C. thirty-one

D. thirty-five

2. Mr and Mrs Gao love their son because _____. 

A. the boy is clever

B. he likes to go to school

C. he can go to school himself

D. he can answer their questions      

3. Gao Ling is in Grade _____ now.           

A. One

B. Two

C. Five

D. Six       

4. Gao Ling went to school _____.        

A. bycar

B. on foot

C. by train

D. by like            

5. Gao Ling thought _____.    

A. his father and he were born on the same day

B. his father was younger than him.

C. his father forget to tell him about his age

D. Gao Dalin became a father six years ago

题型:判断题

成年患者热烧伤70%,Ⅲ度50%。在经过充分液体复苏后,仍尿少,此时应采取的措施是()

A.立即补充5%碳酸氢钠

B.立即应用多巴胺

C.继续加快输液速度

D.立即输血浆

E.立即应用甘露醇注射液

题型:判断题

用于矫治单侧后牙反或锁的矫治器是()

A.单侧垫矫治器

B.上下颌平面式垫矫治器

C.舌习惯矫治器

D.霍利保持器

E.口外牵引矫治器

题型:判断题

德尔菲法通过匿名信函的方式收集专家意见,专家背靠背地发表意见。这体现了德尔菲法的( )。

A.反馈性
B.收敛性
C.匿名性
D.广泛性

题型:判断题

要办好一次庆典活动需要做好哪些工作?

更多题库