题目内容
Use the terms in the text to replace the underlined parts of the following sentences.It rocked gently until the poking stopped, stabilized itself and marched firmly across the level surface.
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The 47th yearly conference of state governors which was held in Chicago in August of 1955 also expressed its extreme interest in the problems of mental illness and in the present inadequacy of state hospital systems.
The design may be important not only for future energy-saving robots, but also for intelligent replacement of body part.
Dr. Ruina's robot and its companions from Delft and M.I.T. are descendants of some early slope-walking machines, mechanical devices that have been around for a century.
They relied on gravity and the principles of objects in motion to walk stably down sloping surfaces.
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