土壤水的再分布
参考答案：土壤水入渗过程结束后，水在重力和吸力梯度影响下在土壤中向下移动重新分布的过程。
Which of the following statements regarding provisions for paying off bonds is least likely correct（）
A. Nonrefundable bonds can be callable.
B. Serial bonds are an issue with several staggered maturity dates.
C. A sinking fund provision gives the company the option to retire portions of the bond issue prior to maturity.
坚持党的基本路线，最重要的是要全面理解和正确处理
A．“一个中心、两个基本点”的关系 B．四项基本原则与改革开放的关系C．改革与开放的关系 D．经济建设与四项基本原则的关系
