下列关于溢流阀的说法错误的是()。A.高压保护 B.过载保护 C.定压溢流 D.节流

题型:单项选择题

问题:

下列关于溢流阀的说法错误的是()。

A.高压保护

B.过载保护

C.定压溢流

D.节流调速

考点:消防员考试消防装备考试消防装备考试题库
题型:单项选择题

– Tommy, you should be reading your Maths right now.

--- I know I ________.

A.should be

B.should

C.should have

D.did

题型:单项选择题

下列关于物权与债权的区别,错误的是()。

A.财产权的静止状态体现为物权

B.财产权在运动状态中又表现为债权

C.财产权的静止状态体现为物权,在运动状态中又表现为债权

D.财产权的运动状态体现为物权

题型:单项选择题
完形填空。
     It was an afternoon in the winter. Some friends and I were talking at a restaurant. We talked and
talked and soon swimming became the  1  . Suddenly I hit upon an idea. "Wouldn't it be   2   if we went
swimming? Others went swimming in winter, and   3   couldn't we? Besides, we could be   4   if we did.
" I told them about this and they all said it was a good idea indeed.
     Early in the morning, three days  5  , we four were standing at the bus stop, with bags in our hands, 
  6   for a bus to take us to the  7  . The sky was clear, the sun was shining, but all the same, it was very
cold,   8   our heavy overcoats were not enough to keep us   9  . We all felt that we should go back, but
no one wanted to  10   .
     We soon reached the sands. There was nobody there, but we were not to be discouraged.   11   we
were proud that we were the   12    ones that dared to challenge the weather. Besides, the sun could
keep us warm. So we   13   ourselves quickly.
     But things were not going to be so nice as we thought. The sea wind was blowing, we felt   14   cold
and we shook from head to feet. At last we decided to   15   the sea water. We put our feet in first, only
to take them back  16  . The water was unbelievably cold.    17   I suggested that we should all jump in
at the same time. We all went back ten steps. I gave the order and we all rushed forward. We jumped.
That feeling I had when I was in the water I shall never 18 . I was up and rushed again to the seaside.
So   19   my friends. We put on our clothes as quickly as possible and went home.
     We four did not go to school the next three days, for we all   20   a bad cold. We missed the lessons,
but we had this unforgettable experience.
( )1. A. object          
( )2. A. interesting    
( )3. A. what            
( )4. A. worse          
( )5. A. later          
( )6. A. asking      
( )7. A. swimming pool  
( )8. A. only          
( )9. A. cold            
( )10. A. speak out    
( )11. A. For          
( )12. A. only        
( )13. A. helped       
( )14. A. such         
( )15. A. go down      
( )16. A. carefully    
( )17. A. Last        
( )18. A. remember      
( )19. A. did        
( )20. A. became        
B. topic        
B. lucky  
B. how        
B. ill          
B. past        
B. meeting      
B. sands      
B. though      
B. warm        
B. talk about  
B. Instead      
B. lucky        
B. enjoyed      
B. a little    
B. go into      
B. quickly      
B. Next        
B. forget      
B. do          
B. felt      
C. opinion      
C. happy       
C. that        
C. stronger    
C. since        
C. waiting      
C. lake        
C. even        
C. hot          
C. shout at    
C. Sometimes    
C. younger      
C. dressed      
C. very        
C. jump into    
C. bravely      
C. When        
C. believe      
C. were        
C. turned      
D. center      
D. surprising  
D. why          
D. better      
D. before      
D. looking      
D. river        
D. since        
D. cool        
D. think over  
D. Unless      
D. happy        
D. changed      
D. a bit        
D. take off    
D. finally      
D. Then        
D. tell        
D. had          
D. caught      
题型:单项选择题

拓扑异构酶I解旋需要ATP酶。

题型:单项选择题

井漏发生时,悬重表读数会()。

A、增加

B、降低

C、不变

D、不确定

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