8.已知某沉澱池設計處理量為Q,池長為L、池寬為W、池有效水深為H,其水平流速為多少?
(A)Q/LW
(B)Q/LH
(C)Q/WH
(D)Q/LWH
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統計: A(11), B(2), C(12), D(12), E(0) #2241729
統計: A(11), B(2), C(12), D(12), E(0) #2241729