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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

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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

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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

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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

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Questions 4 to 6 are based on the following conversation. At the end of the conversation, you will be given 15 seconds to answer the questions. Now listen to the conversation. Why is the woman surprised in the beginning

A. The man is carrying some flowers.
B. The man has spoiled his marriage anniversary.
C. The man seems very excited about meeting his wife.
D. The man is horsing around.

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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 ______.

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)】

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)】

Questions 4 to 6 are based on the following conversation. At the end of the conversation, you will be given 15 seconds to answer the questions. Now listen to the conversation. Why is the woman surprised in the beginning

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)】