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     Alotofnewtechnology

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問題詳情:

     Alotofnewtechnology

      A lot of new technology _____ into schools to make learning more effective these years.

       A. introduced                                  B. has introduced         

       C. was introduced                              D. is being introduced   


【回答】

D

知識點:非謂語動詞

題型:選擇題