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    The world is changing fast. I strongly believe that one will easily fall behind he keeps on learning. A. unless B. if C. when D. as 【查看更多】

     

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    The world is changing fast.I strongly believe that one will easily fall behind _______ he keeps on learning.?

    A. unless B. if?

    C. when　D. as

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    The world is changing fast.I strongly believe that one will easily fall behind _______ he keeps on learning.


    1. A.
      unless
    2. B.
      if
    3. C.
      when
    4. D.
      as

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    The world is changing fast.I strongly believe that one will easily fall behind____he keeps on leaming.    
    [     ]

    A. unless    
    B. if    
    C. when    
    D. as

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    The world is changing fast. I strongly believe that one will easily fall behind         he keeps on learning.

       A. unless        B. if           C. when       D. as

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    The world is changing fast. I strongly believe that one will easily fall behind        he keeps on learning.

           A．unless                 B．if                        C．when                  D．as

     

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