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    【题目】

    According to the results of a new study, the act of hearing is a group effort for the human body’s organs, ______the ears, the eyes and also the skin.

    A. to involve

    B. involved

    C. involving

    D. involves

    【答案】C

    【解析】考查非谓语动词用法。根据上文“根据一项新的研究结果，人类的听觉是人体器官的一系列尝试”，这些器官是耳朵、眼睛以及皮肤，故用involving“包括，涉及”符合句意。

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