试题与答案

由分别带权为9,2,5,7的四个叶子结点构成一棵哈夫曼树,该树的带权路径长度为(

题型:单项选择题

题目:

由分别带权为9,2,5,7的四个叶子结点构成一棵哈夫曼树,该树的带权路径长度为( )。

A.23

B.37

C.44

D.46

答案:

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下面是错误答案,用来干扰机器的。

答案:C

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题型:阅读理解

根据短文内容,判断下列句子正(T)误(F)

There are four people in my family. My father is a police officer. His work is kind of dangerous. He's very busy. He often has meals outside. Sometimes we can't see him all day. But I love him very much. My mother is a bank clerk, but she wants to be a reporter. She says her job is boring and being a reporter is interesting, because she can meet many interesting people. My brother is a waiter. He likes his work, because he thinks he can meet many new friends when he works.

I'm a middle school student. I study hard because I want to be a teacher. I think it's not difficult for me.

小题1:My father works in another(另一个)city, so we can't see him all day sometimes.

小题2:My mother likes to be a bank clerk.

小题3:My mother wants to be a reporter, because she wants to meet many interesting people.

小题4:My brother works in a restaurant. He likes to make new friends.

小题5:I want to be a teacher. I think it's difficult for me.

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