45         /  \ 18 2 / \ \ 23 5 9 Given the following binary tree, name: The root: ________[Fill in the blank] _______________ List the leaves: _______[Fill in the blank] __________ The Height of the tree (root node is at height 0)_____[Fill in the blank] __________ Level for nodes 18 and 2 ____[Fill in the blank] _______ The children of node 18 _____[Fill in the blank] _______ Note : Submit your answer separate by commas(without spaces in between) - For example : 1,2,3,4,5 多项填空题

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