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为保证所测BOD5的准确性,经稀释后的水样培养五天后,溶解氧的残留量应在( )以上。
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为保证所测BOD5的准确性,经稀释后的水样培养五天后,溶解氧的残留量应在( )以上。
A、1.0mg/L
B、2.0mg/L
C、3.0mg/L
D、4.0mg/L
时间:2021-09-01 20:28
关键词:
联大
河南城建学院
变形观测
答案解析
A
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为保证所测BOD5的准确性,经稀释后的水样培养五天后,溶解氧的残留量应在( )以上。
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