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【多选题】
对n（n ≥ 2)个不相同的字符构成赫夫曼树，下列关于该赫夫曼树的叙述中，正确的是_________。A.
一定没有度为 1 的结点
B.
两个最小的结点一定是兄弟结点
C.
叶子结点的一定不小于下一层任一结点的
D.
该树一定是一棵完全二
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举一反三
【单选题】“Two roads diverged in a yellow wood and sorry I could not travel both...” In the above two lines of Robert Frost’s “The Road not Taken”, the poet, by implication, was referring to ________.
A.
one’s course of life
B.
a marriage decision
C.
a middle-age crisis
D.
a travel experience
【单选题】The two roads diverged in a yellow wood And sorry I could not travel both... In the above two lines of Robert Frost's "The Road Not Taken", the poet, by implication, was referring to ______.
A.
a travel experience
B.
a marriage decision
C.
a middle-age crisis
D.
the journey of life
【单选题】It is a nice day today. 1t is ______ hot ______ cold.()
A.
both... and
B.
so... but
C.
neither... nor
【单选题】We can ______ do it now__ after class--- it's up to you.
A.
both... and..
B.
neither...nor...
C.
either... or...
D.
not...but...
【简答题】ended up ___9___ anger from both...
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