【题目】 Among all promotion methods, involves direct spoken communication between seller and potential customers.

1、[主观题]【翻译题】want ad

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2、[主观题]【翻译】通货紧缩

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3、[单选题]In the barter economy, each person is a seller and a buyer.

• A、in turn
• B、simultaneously
• C、by contrast
• D、by chance

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4、[阅读理解]Why is trading expensive in a barter economy?
A. Because time is scarce.
B. Because goods are scarce.
C. Because barter involves mutual wants.
D. Because there aren't many films available.

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5、[主观题]【翻译】流动资金

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