The purpose of the passage is to ______.
A.explain the meaning of poetry and the art of a poet
B.contrast poetry with a democratic and a aristocratic societies
C.explain how poetry, democracy, and aristocracy intermingle
D.contrast the inclination towards poetry in democratic and aristocratic societies
第5题
对于一个具有n个顶点的无向图,若采用邻接矩阵表示,则该矩阵的大小为()。【中南大学2005一、5(2分)】
A.(n-1)2
B.n2
C.n-1
D.n
第7题
无向图的邻接矩阵一定是 ______ 。
A.对角矩阵
B.稀疏矩阵
C.三角矩阵
D.对称矩阵
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