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问题 单项选择题

某混凝土拌合物1m3的质量为2400kg，砂粒为34%，拌制1m3拌和物需用含水率3%的湿砂650kg，石子含水率为2%，拌和用水量为145kg，则其水灰比为( )。

A．0.43

B．0.46

C．0.50

D．0.53

答案

参考答案：C

完形填空
完形填空。
     The Spring Festival is one of the most important traditional festivals in China. We Chinese call it "Nian". But do you know that Nian was once the name of a monster(妖怪) ?
     A long time ago, the monster Nian   1     in the mountains. It mainly ate animals which were      2    than
itself. But in winter, the animals stayed in the holes and        3       went out. It was difficult  for Nian to find
something to eat. So it came to villages and ate a lot of people. People were so        4     of Nian that they
locked their doors before evening came during winter. One day, an  old man  came to   the village. He told people there that Nian was afraid of    5   things the color red, fire and noise. He told people to play drums and gongs, make big fires and set off fireworks to make Nian   6   .
       7   a moonless, cold night, Nian went to the village again. As soon as opened its mouth, people made
too much loud   8   and made fire. Nian was really afraid and ran away. Wherever it went, there was noise and fire. When Nian was tired and couldn't run any more, people killed it.
     After that, on  the  coldest  day  of  winter,   people beat  drums and gongs,  and  set off  fireworks to
celebrate the     9       of the monster Nian. They   10   red lanterns and have a big dinner without sleeping during the night. In the morning people greet each other happily. So now we have the Spring Festival.
( )1. A. living    
( )2. A. weak      
( )3. A. often      
( )4. A. excited    
( )5. A. two        
( )6. A. go away    
( )7. A. In        
( )8. A. voice      
( )9. A. successful
( )10.A. put up     		B. lived        
B. weaker      
B. usually      
B. tired        
B. second      
B. take away    
B. At          
B. noise        
B. success      
B. put away     		C. keeping    
C. strong    
C. seldom    
C. exciting  
C. three      
C. go out    
C. Of        
C. music      
C. die        
C. put off    		D. kept        
D. stronger    
D. ever        
D. afraid      
D. third      
D. take out    
D. On          
D. sound      
D. death      
D. put down    
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所谓近代化，就是经济上的工业化，政治上的民主化，开启中国政治民主化道路的事件是

A．洋务运动

B．戊戌变法

C．辛亥革命

D．新文化运动
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