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【单选题】
n(n≥2)个不相同的字符构成哈夫曼树,关于该树的叙述中,错误的是:A.
该树一定是一棵完全二
B.
一定没有度为1的结点
C.
两个最小的结点一定是兄弟结点
D.
叶结点的一定不小于下一层任一结点的
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皮皮学刷刷变学霸
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【单选题】A Will you go mountain-climbing with me now? B: But I have a headache now. This conversation violates the maxim of
A.
quality.
B.
quantity.
C.
relation.
D.
manner.
【单选题】I have to go now because I must be ()for the appointment.
A.
proposal
B.
puzzled
C.
profound
D.
punctual
【单选题】You should have put the milk into the ice-box, I expect it ______ undrinkable by now.
A.
became
B.
had become
C.
has become
D.
becomes