Piggyback is a system of unitized multimodal land transport by （）.
A、roadandseaB
暂无解析
GeneralaverageandsalvagechargesarecoveredbothinFPAandWPAcoverage.
Normallytrampratesfluctuatewithmarketconditionsofsupplyanddemand.
Whichofthefollowingstatementsaretrueaboutdocumentarycredit_____?
（）isadocumentgrantedbythecustomsauthoritieswhichallowsavesseltostartunloadinggoods.
Accordingtoacertaintypeofrate,ashippercannotbechargedlessthantheappropriaterateof4kginmostcases,eventhoughhisparticularconsignmentmayweighlessthanthis,wecallthistypeofrate（）.
