单选题：What is the best title for this passage?

题目分类：英语
题目类型：单选题
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题目内容：

What is the best title for this passage? A．Six Stages for Repairing Sam's Bicycle.
B．Possible Steps of Problem-solving.
C．Necessities of Problem Analysis.
D．Importance of Analyzing a Problem.

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分类：英语题型：单选题

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分类：英语题型：单选题

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