单项选择题

The main purpose of the talk is to ______.

A．illustrate how wheels, cameras and computers were invented
B．discuss how great inventions influence our way of living
C．compare people’s attitudes towards new inventions
D．compare inventions of the 19th century with that of the 20th century
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单项选择题
According to the speaker, most young people should______.
A．choose a job of real prestige
B．compete for a "white-collar" job
C．get advice from their parents for a job
D．consider mechanical and manual work
单项选择题
What does the woman think of the new system
A．It’s too wonderful to be true.
B．It’s too expensive for her.
C．She considers it nothing fancy.
D．She is considering buying one.
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