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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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