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问题 单项选择题

对有18个元素的有序表做折半查找，则查找A[3]的比较序列的下标依次为 (13) 。

A．1-2-3

B．9-5-2-3

C．9-5-3

D．9-4-2-3

答案

参考答案：D

解析： 折半查找按[(max-min)/2]查找。

填空题

根据句意填入适当单词

1. His mother __________ him and said good night to him.

2. We're very happy to see __________ again after one-week sailing on the sea.

3. You are supposed to __________ when you meet Japanese.

4. The shop is very __________ on Sundays. There're so many people.

5. We won the first prize at the sports meeting. Our teacher was very p __________ with what we did.

6. Before you go to England, you must learn the table __________ there first. They are different from ours.

7. He doesn't like to use a __________ when he eats soup.

8. Don't throw about __________. It's our duty to protect the environment.

9. Edison is a great inventor. When he was a child, he began to __________ with his new ideas.

10. Can you __________ a sentence by using these words?
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选择题

Jack is late again. It is ______ of him to keep others waiting.[ ]

A. normal

B. ordinary

C. common

D. typical

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