题目内容

Questions 14 to 16 are based on the following passage. At the end of the passage, you will be given 15 seconds to answer the questions. Now listen to the passage. Why did Robert Shostak launch the museum

A. He is a keen fan of Louvre and the National Gallery of Art.
B. He wanted to help computer artist.
C. Art students produced many fine pictures.
D. He wanted to do something about art.

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Huffrnan树度为1的结点数等于度为2和O的结点数之差。( )【武汉理工大学2002二、9(1分)】

A. 正确
B. 错误

Questions 7 to 10 are based on the following conversation. At the end of the conversation, you will be given 20 seconds to answer the questions. Now listen to the conversation. The man is probably a ______.

A. gardener
B. farmer
C. shepherd
D. driver

若从二叉树的任一结点出发,到根的路径上所经过的结点序列按其关键字有序，则该二叉树一定是哈夫曼树。( )【北京交通大学2005三、6(2分)】

A. 正确
B. 错误

在下列情况中，可称为二叉树的是( )。【西安交通大学1996三、4(3分)】

A. 每个结点至多有两棵子树的树
B. 哈夫曼树
C. 每个结点至多有两棵子树的有序树
D. 每个结点只有一棵右子树
E. 以上答案都不对