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click the mouse
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On August 8th, 2006,1/family of mathematicians was born.
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On July 29th, 2006, the five most famous mathematicians in China.
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One question a week
Interesting Mathematics: Workers
A worker works for you for 7 days and his reward is a gold bar.
The gold bar is divided into seven connected segments, and you must give him a gold bar at the end of each day. ......
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