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          The Gulf of Mexico (墨西哥灣) is being polluted seriously. That has affected _______ several hundred 
          kinds of sea animals there. 

          A. at least 
          B. at once 
          C. at birth 
          D. at times 
          			
          

			
          
				
          
		
		
	
          
		
          
			
          
				
          
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          The Gulf of Mexico (墨西哥灣) is being polluted seriously. That has affected _______ several hundred kinds of
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          [     ]
          A. at least 
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          The Gulf of Mexico(墨西哥灣)is being polluted seriously．That has affected ________ several hundred kinds of sea animals there．
          

          

          [　　]
          

          A．

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				科目：初中英語
				來源：
				題型：
			
          
									
           The Gulf of Mexico（墨西哥灣） is being polluted seriously.  That has affected _________ several hundred kinds of sea animals there.
              
               A. at least     B. at  once     C. at birth     D. at times
              
          

			
          
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