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问题 填空题

如图所示是自行车传动装置的示意图，若脚蹬匀速转一圈需要时间T，已数出链轮齿数为48，飞轮齿数为16，要知道在此情况下自行车前进的速度，还需要测量的物理量是_____________（填写该物理量的名称及符号）。用这些量表示自行车前进速度的表达式为v=___________________。

答案

后轮周长l；（或答：后轮直径d； 或答：后轮半径R；）

完形填空
完形填空。

     The trip to that city was eye opening for everyone,and near its end,all the young people
in our group began to reflect on what it had meant.We   1   the first night we had arrived.
We had all gone into the markets of the city   2   the young people could experience its
energy.But what we actually saw simply   3  us all-the rundown houses,the children in rags,
the people begging for money...Walking home,  4   under a low bridge,we came across   5  
families of homeless people seeking a bit of dry ground to sleep on   6   the night.We had to
step over bodies as we found our way through the darkness.
     The poverty (贫困) was  7   than anything my young companions had ever imagined.Back
in the hotel,an air of sadness settled over the group.Many  8   and cried.Spending time in this
  9   moves a person to care about humanity.
     That evening,our group spent hours talking about what we had   10  .Gently,I encouraged
everyone to talk about the difficult   11   that day's discoveries had inspired. Sitting together
   12   a circle as everyone had a chance to speak,we all began to realize that   13   of us was
alone in our struggle to cope with our reactions.
     Based on my   14   in poverty stricken areas,I suggested that   15   the emotions we had
were painful,they could also be important in helping us to move forward.We all   16   that we
had seen things that should never be allowed to happen.  17  ,what could we do about it?
Together,we began to brainstorm ways we could help to ease the   18   we had seen.As I
encouraged group members to focus on   19   they could do,a sense of determination   20  
the previous sadness.Instead of despair,these young people began to feel a call to action.

( )1.A.put up with
( )2.A.now that  
( )3.A.puzzled  
( )4.A.marching  
( )5.A.entire    
( )6.A.beyond    
( )7.A.stronger  
( )8.A.gave up  
( )9.A.environment
( )10.A.inspected
( )11.A.feelings
( )12.A.along    
( )13.A.neither  
( )14.A.experiences
( )15.A.once    
( )16.A.supposed
( )17.A.Surely  
( )18.A.burden  
( )19.A.how      
( )20.A.replaced   		B.got back to
B.so that    
B.annoyed    
B.running    
B.normal    
B.with      
B.deeper    
B.broke down
B.hotel      
B.attempted  
B.decisions  
B.around    
B.either    
B.schedules  
B.while      
B.advised    
B.Rather    
B.suffering  
B.where      
B.changed    		C.looked back on
C.as if        
C.embarrassed  
C.passing      
C.average      
C.till        
C.worse        
C.set off     
C.house        
C.witnessed    
C.thoughts    
C.by          
C.none        
C.data        
C.since        
C.confirmed    
C.Now          
C.anxiety      
C.what        
C.covered       		D.made up for  
D.even if      
D.shocked      
D.moving      
D.general      
D.for          
D.less        
D.held on      
D.background  
D.challenged  
D.impressions  
D.in          
D.each        
D.position    
D.unless      
D.agreed      
D.Indeed      
D.difficulty  
D.when        
D.improved    
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单项选择题 A1/A2型题

陈旧性肩关节脱位的主要病理改变除哪项以外是？（）

A.血肿机化、疤痕组织形成

B.关节囊破口被疤痕组织封闭

C.周围组织粘连

D.血管、神经变性

E.关节周围肌肉痉挛
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