Now a paper in Science argues that organic chemicals in the rock come mostly from _________ on earth rather than bacteria on Mar

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问题 Now a paper in Science argues that organic chemicals in the rock come mostly from _________ on earth rather than bacteria on Mars.

选项 A、configuration
B、constitution
C、condemnation
D、contamination

答案D

解析 本题为形近词辨析题。A项configuration意为“轮廓,结构” , B项constitution意为“宪法,构造”,C项condemnation意为“定罪,谴责”,D项contamination 意为“污染”。句意:最近《科学》杂志上刊登的一篇文章指出,该岩石中的有机化学成分大部分来自地球的污染,而不是来自火星上的细菌,故选D。
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