it's close - maybe you didn't count the one that finishes cirlcling the globe in


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送交者: 匆匆过客 于 2006-09-29, 14:16:33:

回答: my answer is 6 planes. is that correct? 由 wavelet 于 2006-09-29, 14:14:00:

7 is the answer I have at hand.



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