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单项选择题

Which aspect of the robots is NOT mentioned in the passage

A．The vividness of their motion.
B．Their pleasant appearance.
C．Their smart designing principles.
D．Their communicative ability.

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单项选择题The Sony Dream Robot was ______.

A．the first human-like entertainment robot developed by the Sony Corp
B．as capable as the QRIO of speaking, dancing, singing and walking
C．largest among all the entertainment robots developed by the Sony Corp
D．the first entertainment robot sold at the market by the Sony Corp