单项选择题

By referring to Sam's broken bicycle, the author intends to ______.

A．illustrate the ways to repair his bicycle
B．discuss the problems of his bicycle
C．tell us how to solve a problem
D．show us how to analyse a problem
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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 or mistake
单项选择题
What is the best title for this passage
A．Six Stages for Repairing Sam's Bicycle.
B．Possible Ways to Problem- solving.
C．Necessities of Problem Analysis.
D．Suggestions for Analyzing a Problem.
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