What are the standards for classification of high-income,middle-income and low-income countries according to the World Bank? Cite some examples for each group.

远期信用证显然要使用远期汇票。付款期限可为30天60天甚至可长达130天。

国家从事的贸易种类是多样的、复杂的，往往是有形贸易和无形贸易的混合。

实质上，反向贸易指的是各种货物和服务的直接交换。

Cargo insurance is one of the main branches of insurance. These are usually listed as fire, marine, life and accident. The term“marine" used to refer to the insurance of ships and their cargoes.Today the movement of cargoes is frequently effected partly by other modes of transport. Where cargo is concerned, "transportation insurance"seems a better term to use today than marine insurance. Goods do not go overseas solely by sea-air transport takes an increasing share of cargo these days.

国外直接投资有三种形式：建立新企业、购买现有设施和建立合资公司。

政府满足公共部门借贷需求的方法之一就是出售金边证券。

The 2000 revision of Incoterms took account of the spread of customs-free zones,the increased use of electronic communication,and the changes in transport practices.The new version offers a simpler and clearer presentation of the definitions of all the terms.As in the previous version, the trade terms of Incoterms 2000 are presented in a format which allows seller and buyer to follow a step-by-step process to determine their respective obligations.

What are the standards for classification of high-income,middle-income and low-income countries according to the World Bank? Cite some examples for each group.

What is" contract carriers"?

Mention some of the risks the exporter may face in trade.