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It doesn’t matter how much loss we have ...

It doesn’t matter how much loss we have suffered; just avoid _____ the mistake again.

A. to make       B. being made       C. having made         D. making

 

D 【解析】 略
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What makes a person a scientist? Does he have ways or tools of learning that are different from those of others? The answer is “no”. It isn’t the tools a scientist uses but how he uses these tools which make him a scientist. You will probably agree that knowing how to use a power is important to a carpenter. You will probably agree, too, that knowing how to investigation, how to discover information, is important to everyone. The scientist, however, goes one step further; he must be sure that he has a reasonable answer to his questions and that his answer he gets to many questions is into a large set of ideas about how the world works.

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   A. The tools he uses.                B. His ways of learning

   C. The way he uses his tools         D. The various tools he uses

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   D. Can be used for many purposes

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