单项选择题


A．grouped
B．classified
C．composed
D．knew
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单项选择题
Sony created a consumer-robot market by ______.
A．lowering prices
B．marketing a robot dog
C．attending RoboCup
D．virtue of its reputation
单项选择题
According to the text, interest in robots has increased in recent years because of ______.
A．RoboCup
B．Sony's Aibo dog
C．a rise in public awareness
D．technological advances
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