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问答题
When adopting common biological filter, high load biofilter and tower biofilter for urban wastewater treatment, the organic loadings are _____, _____, _____ kgBOD / (m3 • d).
When adopting common biological filter, high load biofilter and tower biofilter for urban wastewater treatment, the organic loadings are _____, _____, _____ kgBOD / (m3 • d).
普通生物滤池、高负荷生物滤池和塔式生物滤池处理城市污水时，有机负荷分别是[填空1]、[填空2]、[填空3]kgBOD/(m3·d)。（填相对应小写英文字母）
a 1-3
b 0.11-0.37
c 0.37-1.00
答案：
1、b 2、c 3、a
