搜题请搜索小程序“爱下问搜题”
问题 多项选择题

关于丙烯制冷压缩机开车前应具备的条件有（）。

A．冷剂收集罐充液足够

B．系统保压在0.3MPa～0.6Mpa

C．确认所有的导淋、放空阀关闭

D．确认系统盲板已按清单正确拆装

答案

参考答案：A, B, C, D

阅读理解
阅读理解

Han Jun   12   Beijing
I’m a boy from Beijing. I like animals. I often go to the zoo with my parents. Pandas are my favorite
animals. They are very cute. You know, they are our friends.

Zhao Ziyi    13     Dalian
I’m a girl from Dalian. I’m tall with short black hair. My face is round. It looks like an apple. I like
watching cartoon movies（卡通电影）, Piggy is my favorite cartoon star. It’s very cute.

Tony  12  England
Hello, I’m a boy from England. I like China very much. I often go to China with my parents. They like
China, too. We all like Chinese food. My mother likes to cook Chinese food at home.
根据短文内容，选择正确答案。
1. What are Han Jun’s favorite animals?        
A. Tigers.        
B. Pandas.        
C. Elephants.
2. What does Zhao Ziyi look like?        
A. She is short with short black hair.      
B. She is tall with long black hair.         
C. She is tall with short black hair.
3. Where does Tony come from?        
A. England.      
B. The U.S.A.      
C. China.
4. What do Tony and his parents like?        
A. Cartoon movies.    
B. Chinese food       
C. Animals.
5. Han Jun and Tony are          .         
A. in the same class    
B. good friends    
C. both 12 years old
查看答案
单项选择题

防毒衣防沙林的防毒能力为（）小时。

A.5

B.6

C.8

D.10
查看答案