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

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

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

答案D

解析 contamination污染;致污物。configuration结构;配置。 constitution宪法;体质;构造。condemnation批评责难;(罪的)宣告。
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