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    Because of high demand for Type AB blood, supplies of it in blood banks are usually limited. A. the; the B. a; the C. 不填; the D. 不填; 不填 【查看更多】

     

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    Because of     high demand for Type AB blood,        supplies of it in blood banks are usually limited.

    A．the; the           B．a; the            C．不填; the           D．不填; 不填

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