题目内容

Andy Ruina, a professor at Cornell who took one of the robots to the meeting and whose nephew Josh Bennett, of Chevy Chase, Md., did the unscripted poking.

A. intentional
B. impulsive
C. benefit
D. consume

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These contraptions-toys like waddling penguins and later two-legged robots—were not powered in any way.

A. elements
B. contradiction
C. conception
D. gadgets

Modern versions of the machines, called passive-dynamic walkers, have been built for decades and have long been thought useful models of human locomotion.

A. assistance
B. development
C. movement
D. advancement

The walking robot goes through complex motions; yet explicit computer control is not needed over every joint

A. specific
B. implicit
C. explainable
D. overt

Every practical legged robot will incorporate these principles.

A. utilize
B. combine
C. follow
D. assimilate

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