问题 单项选择题

在进近进入悬停状态时应避免大的进近角和不正常的过小进近角其主要原因是().

A.空速表显示不准确

B.不利于复飞

C.在结束飞行时,难作带油门缓慢地垂直下降

答案

参考答案:C

完形填空
完形填空。
     One day a boy was walking along the street.Suddenly he   1   and looked up into the sky. A young man
passed by him. When he saw the boy,he felt curious (好奇的)   2   looked up, too. Just then a girl came   3   
and saw them. "Is there   4   in the sky?" She thought and looked up,too. In a minute,there were quite some
people   5   great interest in the clear blue sky. Suddenly the boy asked, "Hey,   6   are all you looking up at?"
"That's what we   7   ask you,"said the young man."You want to   8   me?But I wasn't looking at   9 ,"said
the boy. "I   10   my head upward because my nose bled(出血)"
( )1. A. went on            
( )2. A. or                 
( )3. A. out                
( )4. A. anything interesting
( )5. A. giving             
( )6. A. why                
( )7. A. is going           
( )8. A. catch              
( )9.  A. something         
( )10. A. put  up           
B. stopped               
B. so                    
B. in                    
B. interesting  something
B. seeing                
B. where                 
B. are going to          
B. ask                   
B. anything              
B. get on                
C. walked            
C. but               
C. up                
C. anything interest 
C. showing           
C. how               
C. shall go          
C. tell              
C. nothing           
C. get up            
D. sat                   
D. and                   
D. down                  
D. interesting anything
D. looking             
D. what                  
D. will going to         
D. say                   
D. /                     
D. take down           
单项选择题