水表节点是指安装在管网中的水表及管道(后设置的阀门和泄水装置)

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问题:

水表节点是指安装在管网中的水表及管道(后设置的阀门和泄水装置)

考点:机械工程流体输配管网流体输配管网题库
题型:判断题

若|a|=2,|b|=3,且0>a>b,则a+b=(  )

A.5

B.-5

C.-1

D.-3

题型:判断题
完形填空。
     All over the world people enjoy sports. Sports are   1   people's health. Many people like to watch   2   play
sports games. They buy tickets   3   turn on their TV sets to sit   4   them. Sports   5   with the season. People
play   6   games in different seasons. Sometimes they play inside the room, sometimes they play outside. We
can   7   sports here and there. Some sports are rather interesting.   8   people   9   different countries cannot
understand each other, but after a game they often become very  10   to each other.
(   ) 1. A. good for 
(   ) 2. A. other    
(   ) 3. A. and      
(   ) 4. A. in front 
(   ) 5. A. change   
(   ) 6. A. same     
(   ) 7. A. see      
(   ) 8. A. Sometimes
(   ) 9. A. from     
(   )10. A. friend                         
B. good at       
B. others        
B. but             
B. in the front 
B. are          
 B. different      
B. look           
B. When         
B. to             
B. friendly                     
C. good                  
C. the other           
C. or                         
C. in the front of  
C. play                    
C. the same            
C. find                   
C.  Or                   
C. outside                 
C. friends          
D. good to         
D. the others      
D. so              
D. in front of     
D. start           
D. the different   
D. watch           
D. So              
D. inside          
D. more friendly   
题型:判断题

小儿正常的体重差异的波动在()

A.5%左右

B.6%左右

C.10%左右

D.12%左右

E.15%左右

题型:判断题

图7为大陆西岸四个地点的地理位置示意图。读图回答下列各题。

小题1:若不考虑地形因素,四个地点中1月份降雨较多的是

A.甲 丙

B.乙 丁

C.乙 丙  

D.甲 丁小题2:甲、丁两地近海的洋流性质及其对当地气候的影响主要是

A.同属暖流增温增湿

B.同属寒流 降温减湿

C.甲处暖流乙处寒流

D.甲处寒流 乙处暖流

题型:判断题

下述哪项不是小儿腹股沟斜疝的发病原因()。

A.腹膜鞘状突未闭

B.腹腔内容物进入鞘状突

C.Hesselbach三角区腹横筋膜薄弱

D.婴幼儿期有腹压增高因素

E.腹壁肌肉发育薄弱

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