问题
单项选择题
由分别带权为9、6、5、7的4个叶子节点构成一棵哈大曼树，该树的带权路径长度为______。
A．22
B．27
C．44
D．54
答案
参考答案：D
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由分别带权为9、6、5、7的4个叶子节点构成一棵哈大曼树，该树的带权路径长度为______。
A．22
B．27
C．44
D．54
参考答案：D
Unchangeable Love One day I visited an art museum while waiting for my husband to finish a business meeting．I was expecting a quiet view of the splendid 36 ． A young 37 viewing the paintings ahead of me 38 nonstop between themselves．I watched them a moment and __39___ the lady was doing all the talking．I admired the man's 40 for putting up with her 41 stream of words． 42 by their noise, I moved on． I met them several times as I moved through the various rooms of art．Each time I heard her constant flow of words, I moved away 43 ． I was standing at the counter of the museum gift shop making a 44 when the couple approached the 45 ．Before they left, the man 46 into his pocket and pulled out a white object．He 47 it into a long stick and then tapped his way into the 48 to get his wife's jacket． "He's a 49 man．" the clerk at the counter said．"Most of us would give up if we were blinded at such a young age．During his recovery, he made a promise his life wouldn't change． So, as before, he and his wife come in 50 there is a new art show．" "But what does he get out of the art?" I asked．"He can't see．" "Can't see! You're 51 ．He sees a lot．More than you and I do," the clerk said．"His wife 52 each painting so he can see it in his head．" I learned something about patience, 53 and love that day．I saw the patience of a young wife describing paintings to a person without __54_ and the courage of a husband who would not 55 blindness to change his life．And I saw the love shared by two people as I watched this couple walk away, hand in hand．
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