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— What do you think of bacteria, _____ good or bad?   
— _____ to say, but one thing is certain: without bacteria, the world would be quite
      different from what it is.   

A. Are they; hard    
B. Is it; hardly   
C. Is it; hard  
D. Are they; hardly
A
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科目：高中英語 來源：同步題 題型：單選題

-What do you think of bacteria, _____good or bad?   
-_____ to say, but one thing is certain: without bacteria, the world would be quite different from
  what it is.   
[     ]
A. Are they; hard    
B. Is it; hardly   
C. Is it; hard  
D. Are they; hardly

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