题目内容
Now a paper in Science argues that organic chemicals in the rock come mostly from ______ on earth rather than bacteria on Mars.
提问人:杨丽梅发布时间:2020-02-25
A) configuration(结构,外形。构造)
B) constitution(组成,构成,建立,任命),constituent,组成的。成分要素
C) condemnation(谴责,定罪)condemn 批评,谴责,判刑
D) contamination(弄脏,污染)contaminate,弄脏,污染
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