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问题 单项选择题

算法分析的目的是( )。

A．找出数据结构的合理性
B．找出算法中输入和输出之间的关系
C．分析算法的易懂性和可靠性
D．分析算法的效率以求改进

答案

参考答案：D

选择题

The boy doesn't speak _____ his sister, but his written work is very good. [ ]

A. as well as

B. so good as

C. more better than

D. more worse than

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问答题 简答题

客人将房间钥匙弄丢，但又有急事外出，来不及换房，怎么办？
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