国际航协北京办事处成立于()。

（）isadocumentgrantedbythecustomsauthoritieswhichallowsavesseltostartunloadinggoods.

Accordingtoacertaintypeofrate,ashippercannotbechargedlessthantheappropriaterateof4kginmostcases,eventhoughhisparticularconsignmentmayweighlessthanthis,wecallthistypeofrate（）.

进料加工是指国内出口企业或外商投资企业自筹资金购进原材料加工成成品出口，以赚取增值外汇。

E-commercenotonlyinvolvesexchangesamongcustomers,businesspartnersandvendors,butalsoincludesoperationsthathandledwithinthebusinessitself.