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1 146. 期初存貨$60,000,本期進貨$750,000,進貨退回$20,000,進貨運費$30,000,期末存貨$60,000,銷貨收入$820,000,銷貨折讓$20,000,銷貨運費$30,000,試問毛利率為
A 3%
B 4%
C 5%
D 6%