在跟单托收中，汇票属于金融单据，发票和装运单据等属于商业单据，光票托收中没有商业单据，只有金融单据。
简述FOB、CFR和CIF的异同点。
E-commercenotonlyinvolvesexchangesamongcustomers,businesspartnersandvendors,butalsoincludesoperationsthathandledwithinthebusinessitself.
Whentheforwarderpacksthegoodsonbehalfoftheexporter,heshouldconsiderthe（）.
Accordingtoacertaintypeofrate,ashippercannotbechargedlessthantheappropriaterateof4kginmostcases,eventhoughhisparticularconsignmentmayweighlessthanthis,wecallthistypeofrate（）.
