75.大腸桿菌群(coliform group)為水質污染指標,於飲用水水質標準之容許檢出量為何?
(A)不得檢出
(B)6 MPN/100毫升
(C)100 MPN/100毫升
(D)20,000 MPN/100毫升
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統計: A(486), B(1133), C(374), D(56), E(0) #2969189
統計: A(486), B(1133), C(374), D(56), E(0) #2969189