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____ global financial crisis is ____ challenge for the whole world. Confidence, cooperation and responsibility are keys to overcoming the crisis.

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

_____global financial crisis is ____ challenge for the whole world. Confidence, cooperation and responsibility are keys to overcoming the crisis.

  A A, the     B A, a   C The, the    D The, a

     global financial crisis is       challenge for the whole world. Confidence, cooperation and responsibility are keys to overcoming the crisis   

    A．A；the       B．A；a            C．The, the      D．The；a  

         global financial crisis is         challenge for the whole world. Confidence, cooperation and responsibility are keys to overcoming the crisis.

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