单项选择题

International trade is the exchange of goods and（）across national borders.

A.materials
B.factors of production
C.products
D.services

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多项选择题
Which of the following may be the disadvantages of road transport？（）

A.Transport subject to traffic delays
B.Transport subject to breakdown
C.Goods susceptible to damage through careless driving
D.Bad weather
单项选择题
（） is the party which applies to the bank for the opening of a letter of credit.

A.A bank in the seller′s country
B.A bank in the buyer′s country
C.An exporter
D.An applicant
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