首页/ 题库 / [单选题]下列水体污染物中属于无机无毒物质的是()的答案

下列水体污染物中属于无机无毒物质的是()。

单选题
2022-06-09 16:09
A、重铬酸钾;
B、氮、磷等植物营养物;
C、木质素;
D、多氯联苯。
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正确答案
B

试题解析

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