题目内容
In fact fuels we burn and plant food we eat ______ their chemical energy in the form of heat.
| A.give in | B.give off | C.give away | D.give up |
B
试题分析:考查动词短语:A. give in屈服,让步,B. give off 散发,C. give away赠送,泄露,D. give up放弃,句意:事实上,我们烧的燃料和种的食物,以热量的释放它们的化学能量。选B。
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