Carbon monoxide, funned by the incomplete combustion of some carbonaceous material, has been a ______ to humans since the domest

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问题 Carbon monoxide, funned by the incomplete combustion of some carbonaceous material, has been a ______ to humans since the domestication of fire.

选项 A、hazard
B、dispute
C、docile
D、boost

答案A

解析 hazard危险，有危险的事物。dispute争论，争吵。docile驯良的，温顺的。boost推进。

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翻译硕士（翻译硕士英语）

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