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问题 单项选择题 A1/A2型题

治疗社区获得性肺炎时，可覆盖非典型病原体的抗生素是（）

A.头孢菌素类

B.糖肽类

C.青霉素类

D.大环内酯类

E.氨基糖苷类

答案

参考答案：D

完形填空
完形填空。
    My home town is a beautiful place. It stands beside a wide river   1   the foot of low green hills. It has
many fine buildings and wide streets. There   2   trees and flowers   3  . But it has not always been   4   that.
In the old days it was a dirty little town. Bosses lived in the   5   good houses. For the working people there
were only small and dark rooms in old buildings on narrow streets. Nearly everyone was poor and many had
no work. Everything has changed   6   1949. The people have got   7   well with each other. They have   8   
schools, parks, shops and hospitals.
    I love my home town and I love   9   people.  10  of them have changed.
( )1.A. on      
(     )2.A. is     
(     )3.A. somewhere  
(     )4.A. like    
( )5.A. little   
(     )6.A. for      
(     )7.A. in     
(     )8.A. put up  
(     )9.A. its      
(     )10.A. Either    		B. at        
B. had      
B. everywhere     
B. as        
B. less      
B. than      
B. on          
B. put on   
B .it        
B. None       		C. under       
C. are      
C. around                                              
C. such       
C. few       
C. since     
C. for         
C. build    
C. it's     
C. Both      
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填空题

我国自行研制发射的“风云一号”、“风云二号”气象卫星的飞行轨道是不同的．“风云一号”是极地圆形轨道卫星，其轨道平面与赤道平面垂直，周期为T1=12h；“风云二号”是同步轨道卫星，其轨道平面就是赤道平面，周期为T2=24h．两颗卫星相比：______离地面较高．若某天上午8点“风云一号”正好通过赤道附近太平洋上一个小岛的上空，那么“风云一号”下一次通过该小岛上空将是______．
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