以下哪个词表示“留样”? ( )
A. confirmed sample
B. keep sample
C. shipment sample
D. salesman sample
以下哪个词表示“回样”? ( )
A. return sample
B. Keep sample
C. Reference sample
D. reply sample
“pp sample”代表以下哪种样品? ( )
A. 生产样
B. 大货样
C. 产前样
D. 预备样
客户接受的回样,就称为( )
A. Final sample
B. Standard sample
Counter sample
D. Approval sample