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What can we know about Robot Aibo in this text

A．It could recognize shapes and colors.
B．It could respond to spoken commands.
C．It was put on the market no later than 1990.
D．It was created much later than Cindy Smart.
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相关考题

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--When did it begin to snow--It started ______ the night.
A．during
B．by
C．from
D．at
单项选择题
What is the reason for the going down of the population in rich countries
A．The people there have a bright future.
B．The people there have a splendid past.
C．The government carries out a family plan.
D．The government controls the growth rate.
单项选择题
What can we learn about the growth rate of population
A．The total growth rate of world population will increase.
B．The growth rate of population in richer countries will increase.
C．The growth rate of population in poor countries will increase.
D．The total growth rate in American countries will increase.
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