问题
单项选择题
For the root of B_tree of order m,the minimal number of its children is
A．2
B．[m/2]
C．[m/2]
D．m
答案
参考答案：A
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For the root of B_tree of order m,the minimal number of its children is
A．2
B．[m/2]
C．[m/2]
D．m
参考答案：A