12. 埋設於地下管線以絕緣被覆時,應用下列何種物質塗裝後再行包紮?
(A)石綿泥
(B)油漆
(C)柏油
(D)水泥
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統計: A(0), B(0), C(3), D(0), E(0) #3877999
統計: A(0), B(0), C(3), D(0), E(0) #3877999