When we burn coal and wood,they ____ greenhouse gasesA.give in B.give out C.give off D.give up

问题描述:

When we burn coal and wood,they ____ greenhouse gases
A.give in B.give out C.give off D.give up

give out 表示 释放,散发

C give off放出(气体、气味、光、热等)
句子意思:当我们燃烧煤和木头的时候,就会放出会导致温室效应的气体