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当水面宽>100m时,在一个 监测断面上设置的采样垂线数是()条。
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当水面宽>100m时,在一个 监测断面上设置的采样垂线数是()条。
A、5
B、2
C、3
D、1
时间:2021-09-02 17:23
关键词:
超星
华北科技学院
环境工程专升本
环境监测
答案解析
C
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