单项选择题

What is the author's purpose of referring to Sam's broken bicycle

A．To illustrate the ways to repair his bicycle.
B．To discuss the problems of his bicycle.
C．To tell us how to solve a problem.
D．To show us how to analyze a problem.

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热门试题

单项选择题

In analyzing a problem we should do all the following EXCEPT ______.

A．recognize and define the problem
B．look for information to make the problem clearer
C．have suggestions for a possible solution
D．find a solution by trial and error

单项选择题

Daily attendance is required ______.

A．at all American universities
B．only in elementary and high schools in America
C．for bad students only
D．by some college professors