题目内容
【题目】The firemen in Tianjin explosion scene devoted their lives ____ the spread of pollution.
A． to preventing B． to prevent
C． for stopping D． to stop
【答案】A
【解析】天津爆炸事件中的消防队为了防止污染蔓延献出了他们的生命。devote to doing sth.致力于做某事。故选A
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