单项选择题
由几个实数构成的哈夫曼树,共有(50)个结点,有(51)个叶结点,有(52)个二度结点。
A.n
B.n-1
C.2n-1
D.2n
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单项选择题
How many tickets are being processed per day?
A.14.
B.27.
C.220.
D.280.
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单项选择题
道德是由一定的社会经济关系决定的一种社会意识形态。( )
A.正确
B.错误
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