國際貨運代理國際貨運代理專業(yè)英語單項選擇題每日一練(2019.01.21)

來源：考試資料網(wǎng)

1 When one of the original bills of lading being surrendered to the carrier， the others become （）.

2 The UCP published by the（），contains detailed provisions dealing with the operation of documentary credit.