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问题 单项选择题

对器材的管理应建立以下制度（）.

A.不可用器材的销毁制度和报废器材的隔离制度

B.质量系统控制下的器材供应商评估和入库检验制度

C.可以使用和销售少量自制件

D.以上都是

答案

参考答案：B

完形填空
完形填空。
     Canada is the second largest country in the world. It is over 7,000 kilometers from the   1      coast to
 the  east. It   2     six time zones.     3   it is 9 a.m. in Vancouver on the west coast, it is l: 30 p. m. in Sat 
John on  the east coast.
     English and French   4      the two main languages in Canada. About 60 percent of   5     population
speak  French. More   6      70 percent of its population live in cities near the U.S. border (边境).
     Ottawa is the capital. Every year millions of tourists go there to     7    museums and take part in the         cultural (文化的) activities. Toronto is the largest city of  the country   8      about 2.5 million people.
Montreal  is    9     second biggest French-speaking city in the  world.
     The maple (枫树) leaf is the national symbol of Canada.  The Canadian flag has a red maple leaf on
a  red    10   white background.
( )1. A. west  
( )2. A. had  
( )3. A. Which
(     )4. A. are  
(     )5. A. their
( )6. A. up    
( )7. A. see  
( )8. A.with  
(     )9. A. a    
( )10. A. or    		B. south  
B. has    
B. Where  
B. is    
B. his    
B. over  
B: visit  
B. for    
B. an    
B. and    		C. north    
C. have      
C. When      
C. has been  
C. its      
C. than      
C. look      
C. from      
C. the      
C. but      
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选择题

下列分子式表示一定是纯净物的是（   ）

A．C5H10

B．C7H8O

C．CH4O

D．C2H4Cl2
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