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问题 单项选择题

下列有关安装标准节流装置的技术要求，错误的是（）。

A.节流装置的各管段和管件的连接处不得有任何管径突变

B.应采用已知热膨胀系数的材质制造测量管和节流件

C.节流件的前端面应与管道轴线平行，不平行度为10

D.节流件的开孔应与管道同心，不同心度不得超过0.015D（1/β），式中β=d/D

答案

参考答案：C

单项选择题

产妇，35岁，孕2产1，妊娠40周临产，产前估计胎儿体重4000g，第一产程顺利，第二产程延长， * * 检查：胎先露棘下2cm，胎头矢状缝在3点和9点，行会阴侧切胎吸助娩，胎头娩出后，前肩嵌顿于耻骨联合上方，常规手法不能娩出胎肩，后反复旋转牵拉胎颈4分钟，最终娩出一男婴，体重4600g，Apgar评分1分钟2分，5分钟10分

目前选择的处理哪项是不恰当的

A．屈曲大腿

B．抬高臀部

C．耻骨联合上方后肩压前肩并同时牵拉胎儿

D．当后肩入盆时，将后肩向侧上旋转，同时将胎头同向旋转，当后肩旋转至前肩位置时娩出

E．握住胎儿后上肢沿胎儿胸前滑出 * * 而娩出后肩及后上肢，再将胎肩旋转至骨盆斜径上，牵引胎头使前肩入盆即可娩出
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完形填空
阅读下面的材料,掌握其大意,然后从短文后各题所给的A、B、C、D四个选项中,选择最佳选项。    

     Shanghai is a modern city. It likes new things. Shanghai was a(n)   1   city even a hundred years ago,
so there is a(n)   2   -if Shanghai likes new things, what should it do with the old things?    
     The government (政府) thinks a modern city should have both old and new things. The Waibaidu
Bridge is an example. People built it over one hundred years ago. When it   3   , the government decided
to spend a lot of money rebuilding (重建) it. The government did this   4   it believes that the city needs to
remember its history.    
     There are also some people working to save historical (历史的) things. Mr Wang is one of   5   .
When he was fifty years old, he   6   from Canada to Shanghai, his hometown, and started to collect
materials (材料) of old houses. He believed that old houses were a(n)   7   part of China's history so he
tried his best to save them. He   8   the materials to other places and rebuilt them.    
     You can also help to remember the past. Get a camera and take   9   of old things. Ask old people to
tell you stories about Shanghai's  10   . It can be fun and you can see how some new things in the past are
old now.

( )1. A.small
( )2. A.mistake
( )3. A.fell down
( )4. A.if    
( )5. A.us    
( )6. A.walked  
( )7. A.light
( )8. A.reported  
( )9. A.dreams  
( )10. A.past  		B.big       
B.question     
B.made up     
B.though   
B.him      
B.returned             
B.underground    
B.provided   
B.photos      
B.attitude 		C.peaceful
C.plan  
C.caught up
C.so     
C.them                     
C.swam  
C.difficult
C.took  
C.notes
C.tomorrow		D.tiring              
D.answer              
D.gave up             
D.because             
D.you                 
D.wrote               
D.important           
D.considered          
D.conclusions         
D.present          
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