20.下列那一種裝置,會影響到淨油機中的油水界面(Interface)?
(A)比重盤(Gravity disk)
(B)扣環(Lock ring)
(C)水分感傳器(Water transducer)
(D)疏水閥(Water drain valve)

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統計: A(107), B(0), C(7), D(2), E(0) #1206486