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What was scientists’ understanding of methane? What is the beneficial point of some microbes consuming plant-produced methane?

admin2009-06-15  109
问题 What was scientists’ understanding of methane?
What is the beneficial point of some microbes consuming plant-produced methane?
选项 A、Methane becomes less poisonous.
B、Methane is turned into a fertilizer.
C、Less methane reaches the atmosphere.
D、Air becomes cleaner.
答案C
解析 最后一段的第二句可以找到本题的答案。
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