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问题 单项选择题

妊娠期母体血液的改变正确的是

A．血容量于妊娠10周开始增加，妊娠36周达高峰

B．红细胞增加多于血浆

C．白细胞总数减少

D．血沉加快

E．大部分凝血因子减少

答案

参考答案：D

解析：血容量于妊娠6～8周开始增加，妊娠32～34周达高峰；血浆增加多于红细胞；白细胞总数增加；大部分凝血因子增加呈高凝状态。

完形填空
完形填空。

      There are different kinds of trains in the world. Trains can       1       people, animals, and other things.
Some trains are      2     , the others are slow. They can reach most of the cities and towns. Some trains go
    3    the hills if they are too high to go over. In big cities, the streets are usually     4     and some cars and
buses often have to wait.
      So you can find trains under the      5       and trains on a rail above the streets. People can quickly be
brought in or taken out. Can a train run over       6     ? Yes, it can.  There are many bridges over the
rivers.  But it is not easy to      7       bridges. Today's trains have dining-rooms for people. You
may      8     something in them on the way if you are hungry. Trains are      9      to men, women and
children. Many children like to play with model trains. With the model trains they can build their own rails
and      10       thewonderful world of trains.

( )1. A. carry    
( )2. A. help      
( )3. A. through  
( )4. A. full      
( )5. A. seas      
( )6. A. water    
( )7. A. mend      
( )8. A. cook      
( )9. A. useful    
( )10.A. hate      		B. take          
B. expensive      
B. among          
B. dirty          
B. farm          
B. air            
B. watch          
B. eat            
B. polite        
B. are afraid of  		C. bring            
C. fast            
C. during          
C. free            
C. ground          
C. forests          
C. reach            
C. find            
C. bad              
C. get on well with 		D. hold      
D. empty    
D. above    
D. busy      
D. gardens  
D. mountains
D. build    
D. pick      
D. lucky    
D. enjoy    
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单项选择题

男，10岁，双腮腺反复肿胀3年，每年肿胀4～5次，每次持续1周，无口干、眼干症状，腮腺造影有点球状扩张，处理应为

A．应行双腮腺手术切除

B．多饮水、按摩腺体，保持口腔卫生，必要时抗感染治疗

C．理疗

D．腮腺内注入甲紫致腺体萎缩

E．主导管结扎治疗
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