75.下列何者為食微比之單位
(A)kgMLVSS/kgBOD-day
(B)kgBOD/kgMLVSS-day
(C)kgMLVSS/kgDO-day
(D)kgMLVSS/ kgVSS-day。

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統計： A(0), B(2), C(0), D(0), E(0) #1258016