139. ( ) 銷貨淨額$120,000,銷貨成本$84,000,則毛利率為
(A)70%
(B)30%
(C)84%
(D)12%
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統計: A(0), B(11), C(0), D(0), E(0) #2843625
統計: A(0), B(11), C(0), D(0), E(0) #2843625