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问题 选择题

读南美洲部分地区图，关于图中两国之间的国界线，叙述正确的有

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A．图中两国的国界线为山脉，为自然形成的国界

B．图中两国的国界线为山脉，为两国商定后，人为划分的

C．图中两国的国界线为经线，为两国商定后，人为划分的

D．图中两国的国界线为未定国界

答案

答案：B

完形填空
完形填空。
     There is a   1   in our kitchen.There   2   some fruit in it to keep cool. But there aren't any apples    3   
bananas, so it's not   4   .We have   5   meat and vegetables in a bag. We like to   6   the meat and fish for
dinner. Near the bag are two boxes. The big   7   is a box of cakes. The small one is a box of tea. Behind
the boxes are five  8    . Mother loves   9  . She 10 to buy some other food this afternoon.
(    ) 1. A . table            
(    ) 2. A . is               
(    ) 3. A . so               
(    ) 4. A. small             
(    ) 5. A. not               
(    ) 6. A. bring             
(    ) 7. A. bag               
(    ) 8. A. bottles of oranges
(    ) 9. A. cook              
(    ) 10.A. will               		B. basket          
B. are             
B. but             
B. full            
B. many            
B. use             
B. one             
B. bottles of orange
B. cooking         
B. goes             		C. dish             
C. have             
C. or               
C. nice             
C. much             
C. take             
C. ones             
C. bottle of orange 
C. cook             
C. would like        		D. fridge           
D. has              
D. and              
D. heavy            
D. lots of          
D. have             
D. boxes            
D. bottle of oranges
D.  to cook         
D. like             
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单项选择题

飞行中两个主发电机均失效，在应急发电机工作之前，直流主汇流条（DC ESS BUS）和交流主汇流条（AC ESS BUS）由什么供电？（）

A.静变流机

B.主变压整流装置（ESSTR）

C.1号和2号电瓶

D.1号电瓶
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