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 analyses a problem

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单项选择题

As used in the last sentence, the phrase in short means_____.

A．in the long run
B．in detail
C．in a word
D．in the end

单项选择题

Which of the following is NOT true

A．People do not analyze the problem they meet.
B．People often accept the opinions or ideas of other people.
C．People may learn from their past experience.
D．People can not solve some problems they meet.