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With the development of science, more new technology to the field of IT. A.has i

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With the development of science, more new technology to the field of IT. A.has i

With the development of science, more new technology         tothe field of IT.

A.hasintroduced                         B.is beingintroduced

C.is introduced                           D.wasintroduced

 

试题答案

【答案】

B

【解析】

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