28. 通常一道溶劑型水泥漆之膜厚約為
(A)0.1mil
(B)0.5mil
(C)1.5mil
(D)5.0mil
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統計: A(0), B(0), C(1), D(0), E(0) #3728773
統計: A(0), B(0), C(1), D(0), E(0) #3728773