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男孩，7岁，1周前开始发热，全身不适，食欲下降，大便干结，轻度腹胀，近2日轻咳无痰。体检：体温38.9℃，神志清，软弱，心脏无异常，两肺呼吸音略粗，肝肋下2cm，脾肋下1.5cm，无压痛。血常规：白细胞数4.6×109／L，中性粒细胞0.68，嗜酸性粒细胞计数为0，肥达反应：O效价1：40，H效价1：80，胸部X线正常。

病人血培养有伤寒杆菌生长，该病人入院时应是伤寒的（）

A.前驱期

B.初期

C.缓解期

D.极期

E.恢复期

答案

参考答案：B

改错题
改错题。
     Cell phones can be see almost everywhere at        
                                                   
school now. Many teacher say that we students      
                                                   
should not used cell phones at school. But I think  
                                                   
it should be allowed to be used at school because  
                                                   
we want to get touch with our parents. Cell        
                                                   
phones can be used almost anywhere or at any       
                                                   
time. What more, cell phones can be great fun,     
                                                   
too. Besides make phone calls, we can also play    
                                                   
games and sent text messages to our friends by     
                                                   
cell phone. Don't you think of they are necessary? 
         
1._____  
         
2._____  
         
3._____  
         
4._____  
         
5._____  
         
6._____  
         
7._____  
         
8._____  
         
9._____  
         
10._____ 
查看答案
单项选择题

汽轮机轴发生弯曲、需要进行直轴，一般采用（）直轴

A.内应力松弛法

B.局部加热法

C.机械加压法

D.捻打法
查看答案