要求二叉树按二叉链表形式存储，并且：
(1)写一个建立二叉树的算法。
(2)写一个判别给定的二叉树是否是完全二叉树的算法。完全二叉树定义为：深度为K，具有N个结点的二叉树的每个结点都与深度为K的满二叉树中编号从1至N的结点一一对应。

Which of the following is the most important aspect of nursing care in the postpartum period()

A. Supporting the mother’s ability to successfully feed and care for her neonate.

B. Providing group discussions on infant care.

C. Monitoring the normal progression of lochia.

D. Involving the family in the teaching.