He decided to devote all his time and effort______scientific investigation.A、in

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问题 He decided to devote all his time and effort______scientific investigation.

选项 A、in
B、on
C、from
D、to

答案 D

解析本题考查动词搭配。devote one’s time／life／efforts to(doing)sth．是固定搭配，表示“奉献，把…奉献(给)，致力于”。故选D。

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Alawyerfriendofminehasdevotedherselftotheserviceofhumanity.Her