首页/ 题库 / [单选题]关于水样的采样时间和频率的说法,不正确的的答案

关于水样的采样时间和频率的说法,不正确的是( )。

单选题
2021-07-17 23:50
A、较大水系干流全年采样不小于6次;
B、排污渠每年采样不少于3次;
C、采样时应选在丰水期,而不是枯水期;
D、背景断面每年采样1次。
查看答案

正确答案
C

试题解析

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