航空货物发运后和提取前，托运人要求变更付款方式或代垫付款数额时应填写货物运费更改通知单，即( )。

航空运输中，无人提取的货物是指货物到达目的地( )后而无人提取的货物。

《华沙公约》规定有关赔偿的诉讼时效是( )。

航空货物运输中，收件人如发现货物损坏，应最迟在收到货物之日起( )天内提出索赔。

航空货物运输合同的客体是( )

《蒙特利尔第四号协议书》规定，赔偿的责任限额为每千克( )个SDR。

_____ published by the ICC contains detailed provisions dealing with the operation of documentary credit.

In the practice of L/C transaction, the buyer is not required to pay for the goods until the arrival of the relevant____.

According to documentary credit, the____, on receipt of letter of credit, will have to prepareshipment of the contract goods within the delivery date.

Which of the following statements are true about documentary credit_____?