题目内容

In some way, compensation trade is a kind of loan.

A. 对
B. 错

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In a barter trade, two contracts are to be signed.

A. 对
B. 错

In a barter trade, only one L/C is to be opened if the payment is agreed to be made by L/C.

A. 对
B. 错

In a tender business, a number of bidders compete against one another for.a deal with favorable terms in their own bid.

A. 对
B. 错

污泥浓缩法去除的是污泥中的( )

A. 自由水
B. 表面吸附水
C. 毛细水
D. 内部结合水

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