0.2,6.8,-0.8,5.8,-1.8,4.8,( ),3.8   A. -2.8   B. 3.8   C. -4.8   D. 5.8

0.2,6.8,-0.8,5.8,-1.8,4.8,( ),3.8

  A. -2.8

  B. 3.8

  C. -4.8

  D. 5.8

参考答案:A

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