题目内容

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

A. 对
B. 错

查看答案

搜索结果不匹配？点我反馈

更多问题

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

关于污泥的稳定，下列说法正确的是( )

A. 厌氧消化的反应速率比好氧消化快
B. 好氧消化适合于污泥量大的场合
C. 厌氧消化比好氧消化能耗高
D. 石灰可用于污泥稳定