________ to his experiment, he didn't notice that autumn had already come.A．Devo_刷题宝

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________ to his experiment, he didn't notice that autumn had already come.

A．Devote	B．Devoting
C．Devoted	D．To devote

上一题下一题 0.64难度单项选择更新时间:2014-07-10 06:19:38

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