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    An earthquake is a shaking of the ground that occurs when rock beneath the surface of the earth change position . A. a great many B. a mass of C. a number of D. a plenty of 【查看更多】

     

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    An earthquake is a shaking of the ground that occurs when         rock beneath the surface of the earth changes position.

    A．a great many    B．a great mass of C．a number of     D．a plenty of

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