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Thank you highfive. My child told me 24 (advent calendar) but I didn't understand why. Thank you for your explanation. Cheers.
原帖由 highfive 於 09-12-26 23:35 發表 
http://en.wikipedia.org/wiki/Advent_calendar
I had no idea what an "advent calendar" was before I googled it. Based on the Wikipedia info I think the answer to your question should be 24-13=11.
[ 本帖最後由 Yau_Cheung 於 09-12-27 17:58 編輯 ] |
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