Returned logistics is the goods flow（）
A. From sellers to buyers
B. From buyers to sellers
C. From outside to inside of any company
D. From wholesalers to retailers
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丝虫病的实验室诊断常取（）。
A. 腓肠肌
B. 外周血液
C. 痰液
D. 粪便
E. 尿液
Reverse distribution is the part of （）
A. From sellers to buyers
B. From buyers to sellers
C. From outside to inside of any company
D. From wholesalers to retailers
Customers return the product because of（）
A. Quantity
B. Quality
C. Quality control
D. Quality unqualified
旋毛虫病的实验室诊断可取（）。
A. 腓肠肌
B. 外周血液
C. 痰液
D. 粪便
E. 尿液
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