单项选择题
ORACLE数据库的数据类型中包括支持多媒体信息的数据类型,最大长度可达到
A.2GB
B.100MB
C.255MB
D.1GB
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单项选择题
若一棵二叉树中只有叶结点和左右子树皆非空的结点,设叶结点的个数为k,则左右子树皆非空的结点个数是
A.2k
B.k-1
C.2k-1
D.2k+1
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单项选择题
What is the definition of a path
A.A sequence of vertices and the edges formed by each successive pair of vertice
B.A walk with distinct vertice
C.A walk with distinct edge
D.None of the above
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