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1、(2011·河北正定中学第一次月考)17.The professor devoted all his life ____the treatment of AIDS.

A to research               B.in researching      C.to researching      D.at researching

1、C考查短语devote to的用法。此处to为介词,其后用动名词。

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(2011·河北正定中学第一次月考)17.The professor devoted all his life ____the treatment of AIDS.

A to research               B.in researching      C.to researching      D.at researching

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