单选

●按照二叉树的定义，具有3个结点的二叉树有 (37) 种。
(37)

A．3 &n
bsp; B．5
C．4
D．6

试题出自试卷《2011年程序员考试考前密卷（四）-上午试题》

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●按照二叉树的定义，具有3个结点的二叉树有 (37) 种。(37)

●按照二叉树的定义，具有3个结点的二叉树有 (37) 种。
(37)