A.每个顶点的入度等于出度
B.每个顶点的度等于其入度与出度之和
C.每个顶点的入度为0
D.每个顶点的出度为0
第1题:
下面有关图的相关概念说法不正确的是【】
A.有e条边的无向图,在邻接表中有e个结点
B.有向图的邻接矩阵是对称的
C.任何无向图都存在生成树
D.不同的求最小生成树的方法最后得到的生成树的权值之和是相等的
第2题:
4、下面关于图的说法正确的有 The right statements of graphs in the following are:
A.对于有向图,每个结点的出度必须要等于入度。As for directed graph, each vertices’ out-degree is equal to its in-degree.#B.对于一个连通图,一定存在一种给边添加方向的方案使得这个图变成强连通图。For a connected graph, there must be a way of directing all the edges of the original graph to make the graph strongly connected graph.#C.对于有向图,所有结点的入度加起来一定为奇数。For directed graph, the sum of in-degrees of all nodes must be odd number.#D.对于无向图,所有结点的度数加起来一定是偶数。As for undirected graphs, the s第3题:
下面关于图的说法正确的有 The right statements of graphs in the following are:
A.对于有向图,每个结点的出度必须要等于入度。As for directed graph, each vertices’ out-degree is equal to its in-degree.#B.对于一个连通图,一定存在一种给边添加方向的方案使得这个图变成强连通图。For a connected graph, there must be a way of directing all the edges of the original graph to make the graph strongly connected graph.#C.对于有向图,所有结点的入度加起来一定为奇数。For directed graph, the sum of in-degrees of all nodes must be odd number.#D.对于无向图,所有结点的度数加起来一定是偶数。As for undirected graphs, the s第4题:
第5题:
【单选题】2、下面哪些说法是错误的()。
A.有向图是一个状态转换图
B.状态转换图是一个有向图
C.有向图是一个DFA
D.DFA可以用状态转换图表示