河就不说了。近海也很糟糕。尤其渤海基本就是围起来的,据说两百多年才能自然循环一次。那么多废水倒进去了,基本没戏了。
河就不说了。近海也很糟糕。尤其渤海基本就是围起来的,据说两百多年才能自然循环一次。那么多废水倒进去了,基本没戏了。
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