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    20．An average of 130,000 Chinese abroad for studies every year over the past few years, improving exchanges in the educational fields. A．was going B．have been going C．has been going D．are going 【查看更多】

     

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    An average of 130,000 Chinese ____ abroad for studies every year over the past few years, improving exchanges in the educational fields.

         A. was going                                       B. have been going  

         C. has been going                                 D. are going

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    An average of 130,000 Chinese ____ abroad for studies every year over the past few years, improving exchanges in the educational fields.

    A．was going                                       B．have been going

    C．has been going                     D．are going

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    An average of 130,000 Chinese ____ abroad for studies every year over the past few years, improving exchanges in the educational fields.

    　　 A. was going B. have been going

    C. has been going D. are going

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