单项选择题

Questions 22 to 25 are based on the conversation you have just heard. What do we learn about a"smart"car according to the woman

A．It uses new technology.
B．It is installed with a robot.
C．It is as clever as human.
D．It can talk with people.
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单项选择题
What was the main purpose of having a watch during the 1800s
A．To know direction.
B．To measure time.
C．To show off one’s wealth.
D．To get to work on time.
单项选择题
Why was everyone interested in time by 1900
A．Everyone needed to measure their spare time.
B．Everyone wanted to be punctual.
C．Efficiency meant much more money.
D．Efficiency was closely related to time.
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