问题
填空题
超滤系统的清洗中要求酸洗的PH值为（）碱洗的PH值为（）。
答案
参考答案：3；11-12
搜题请搜索小程序“爱下问搜题”
超滤系统的清洗中要求酸洗的PH值为（）碱洗的PH值为（）。
参考答案：3；11-12
A private agreement between two parties to exchange a series of future cash flows, with at least one of the two series of cash flows determined by a later outcome, is best characterized as a (n) :
A．
| A. swap. |
B．
| B. futures contract. |
C．
| C. over-the-counter contingent claim. |