A.4B.7C.6D.5
A.该结点的中序前驱结点,或中序后继结点B.该结点的父亲结点C.该结点的中序后继结点D.该结点的中序前驱结点
A.10,15,36,28,25,55,78,70,46,30,32B.46,25,15,10,28,36,30,32,70,55,78C.36,30,15,25,10,28,32,46,78,55,70D.46,32,55,15,10,30,25,36,78,58,70