题目内容

单选题 A () is a sequence of nodes in which each node is adjacent to the next one.

A. leaf
B. root
C. descendant
D. path

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更多问题

单选题 If the height of a tree is 10, the highest level of the tree is ().

A. 10
B. 9
C. 5
D. 1

单选题 In a binary tree, each node has () two subtrees.

A. more than
B. less than
C. at most
D. at least

单选题 In a preorder traversal, the () is processed first.

A. left subtree
B. right subtree
C. root
D. a or b

单选题 In a postorder traversal, the root is processed ().

A. first
B. second
C. last
D. a or b