Dear friend,
You think too deep,the answer is near 100 li.It is (r/R)*100 li. 007 is very trick.
Near 100 li.
所有跟帖:
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It May be near 200 li. (r/R)*100+100
-jinjing-
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05/26/2010 postreply
14:39:15
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I,m wrong,007 win
-jinjing-
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05/26/2010 postreply
15:15:42