题目内容：
引起水体富营养化的污染物质是（）
A.N、P
B.Hg、Cd
C.Cu、Zn
D.I、Se
参考答案：
选择题：引起水体富营养化的污染物质是（）
- 题目分类：中国大学MOOC慕课
- 题目类型：选择题
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