Choose the best answer.Mr. Brown doesn’t want to buy ______.
A. porcelain
B. combs
C. bracelets
What kind of wooden products does Mr. Brown choose? ______
A. Wooden combs
B. Wooden sculptures
C. Wooden penholders.
What are good presents for the elderly? ______
A. Combs
B. Jade talismans
C. Handicrafts.
已知图的邻接矩阵同上题8,根据算法,则从顶点0出发,按广度优先遍历的结点序列是( )
A. 0 2 4 3 6 5 1
B. 0 1 2 3 4 6 5
C. 0 4 2 3 1 5 6
D. 0 1 3 4 2 5 6