问题 多项选择题

关于血液的叙述,错误的是()

A.其容量约占体重10%

B.由晶体物质溶液、血浆蛋白、血细胞三种成分组成

C.主要功能是完成体内物质运输以保证机体新陈代谢的正常进行

D.如果已知血浆容量和血红蛋白浓度,就可计算出血液容量

E.饮水后血容量不变

答案

参考答案:A, E

完形填空
完形填空。
     Two friends went to a city and     1     in a big hotel. Their room was on the 56th floor,
and there was a fast lift, so they went up and down very     2     . They came back to the hotel
very late one Saturday     3     ,and the liftman said to them," The electricity (电) stopped today.
You can't    4      the lift now, " The two friends said. "We    5     to go upstairs (上楼) to our room."
     They left their coats downstairs because they were     6    , and began to climb. It took a     7    
time, but they sang some interesting songs. At 12:00, they      8    the 56th floor. Then one of them
put his hand in his pocket (口袋) and stopped. He said to    9     , "Now. I'm going to sing the most
interesting song of all. Its name is: I    10      the key to the room downstairs in my coat."
( )l. A. ate        
( )2. A. early     
( )3. A. morning   
( )4. A. climb     
( )5. A. like      
( )6. A. light     
( )7. A.short      
( )8. A. got to    
( )9. A. the liftman
( )10. A. put      
B. slept    
B. easily  
B. afternoon
B. see     
B. want    
B. beautiful
B. little  
B. went up 
B. the other
B. bought  
C. lived     
C. friendly 
C. night    
C. make     
C. have     
C. heavy    
C. long     
C. turned to
C. the worker
C. left     
D. played        
D. carefully     
D. time          
D. use           
D. start         
D. old           
D. lot           
D. walked down   
D. the businessman
D. threw         
多项选择题