题目内容

Animals not only make good pets, they sometimes make perfect workers if they have the right ____(特征) and training.

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Capuchins learn to open doors, clean up spills, and ____(拧开) bottle tops.

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And speaking of VCRs, animals are even helping scientists make a ____(录像带).

She turns on the light, soaps up a ____(毛巾), and begins cleaning her friend's face.