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判断题 The number of branches associated with a node is a degree of the node . ( ) 对 ( ) 错
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判断题 All nodes in the tree, except the leaf, must have an indegree of one. ( ) 对 ( ) 错
判断题 All nodes in the tree, except the root, must have an indegree of one. ( ) 对 ( ) 错
判断题 A leaf is a node with an outdegree of zero. ( ) 对 ( ) 错
判断题 If the tree is not empty, the first node is called root, which has the indegree of one. ( ) 对( ) 错
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