单选题
中国农业银行
2016-05-02
Carbon dioxide_______from burning fuels is the most common of the socalled greenhouse gases.
A. producing
B. having been produced
C. to be produced
D. produced
参考答案
D
答案解析
【答案】D。解析:从燃烧的燃料所中产生的二氧化碳是所谓的二氧化碳温室气体中最常见的。过去分词produced表被动,故选D。
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