判断题
设图G是有5个结点的连通图，结点度数总和为10，则可从G中删去6条边后使之变成树．( )
- 对
- 错
判断题
无向图G的结点数比边数多1，则G是树．( )
- 对
- 错
判断题
设G是一个连通平面图，且有6个结点11条边，则G有7个面．( )
- 对
- 错
判断题
结点数v与边数e满足e=v的无向连通图就是树．( )
- 对
- 错
判断题
已知图G中有1个1度结点，2个2度结点，3个3度结点，4个4度结点，则G的边数是15．( )
- 对
- 错
正确
错误
判断题
设图G是有6个结点的连通图，结点的总度数为18，则可从G中删去4条边后使之变成树．( )
- 对
- 错
判断题
若图G=<V, E>中具有一条汉密尔顿回路，则对于结点集V的每个非空子集S，在G中删除S中的所有结点得到的连通分支数为W，则S中结点数|S|与W满足的关系式为W
- 对
- 错
判断题
设G是一个有7个结点16条边的连通图，则G为平面图．( )
- 对
- 错
单选题
At all hours, the media offer language learners “real-life” audio visual instruction and practice in aural comprehension.
the answers to test questions
understanding spoken language
hospital and health information
real-life experience
单选题
High-quality TV programming —a good plan of shows about various fields of study—can increase people’s knowledge and improve their thinking abilities.
scientific and medical shows
academic lecture courses
choice and organization of shows
movies with good music