The students in the class were _____four groups before they started the game.

习惯上把()称为大副收据。

实用新型和外观设计专利的保护期限为______

出口国政府为刺激出口，对生产出口产品的企业实行特殊政策，给予特殊的经济上或财政上的支持措施是______

下列方式中，具有多式联运性质的是()

According to UCP 600, under L/C, the payer of the draft is ( ) .

我国在对外贸易经营者资格方面实行的原则是______

If business had been carried out to our satisfaction, we _ to renew the Agency Agreement.

Tom kept quiet about the accident ________ lose his job.