题目内容

无向图G的完全关联矩阵M(G)中所有元素之和是图各结点度数的和，也是边数的2倍。

A. 对
B. 错

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图的邻接矩阵体现的是结点之间的邻接关系；可达性矩阵体现的是有向图中结点之间的可达关系；完全关联矩阵体现的是结点与边之间的关联关系。

A. 对
B. 错

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