Madame Curie(居里夫人) contributed all his life ______ radium(鐳) so that she has earned respect from people all over the world.

A. to study B. to studying

C. study D. studied

B

【解析】

試題分析：考查固定搭配。句意：居里夫人畢生致力于研究鐳元素，這為她在全世界范圍內(nèi)贏得了尊重。contribute one’s time/oneself to sth/doing sth致力于......，其中的to是介詞，后跟動(dòng)名詞，故選B。

考點(diǎn)：考查固定搭配

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