单项选择题

How many laser printers in the computer center

A．three
B．four
C．six
D．seven
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单项选择题
Why does the author say his car becomes the extension of his personality (in Para. 2)
A．Driving can show his real self.
B．Driving can show the other part of his personality.
C．Driving can bring out his character.
D．His car embodies his temper.
单项选择题
What does the practical manifestations out of control (Para. 3) mean
A．Technology is losing its traditional practicality.
B．Technology is moving further away from science.
C．Technological progress is benefiting the whole world.
D．Technology is threatening the existence of human civilization.
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