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  3. Although the compound is abundant in the environment at large, its presence in t

Although the compound is abundant in the environment at large, its presence in t

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问题 Although the compound is abundant in the environment at large, its presence in the air is not______; only in the form of underwater sediment does it cause damage.
A trivial
B detectable
C deleterious
D substantive
E detrimental
F inconsequential
选项
答案 C，E
解析 Choice C: deleterious AND Choice E: detrimental
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