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Posted by frkstyc at 2005-07-28 15:31:39 on Problem 2508
In Reply To:我这样算，2*pi*r*1/4=4.71 Posted by:fjnu_jxd_010 at 2005-07-28 15:30:33

无语

Followed by:

我这样算错了吗，请指教。。 (0) fjnu_jxd_010 2005-07-28 15:44:57
- 2*pi*r*1/4=4.71,，，那4.54是怎么算的？ (0) fjnu_jxd_010 2005-07-28 15:51:16
  - 我知道了，是4。54，刚才2*pi-a也改了---但还wa ：。（ (0) fjnu_jxd_010 2005-07-28 15:57:16
  - 我知道了，是4。54，刚才2*pi-a也改了---但还wa ：。（，高手们再看看。。 (666) fjnu_jxd_010 2005-07-28 15:57:52
    - ac了，发贴庆祝。。谢大虾们。。。 (750) fjnu_jxd_010 2005-07-28 16:09:07
      - cong~ (0) yreto 2005-07-29 17:35:15

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