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Yahoo!奇摩知識+ - 分類問答 - 科學常識 - 發問中
Yahoo!奇摩知識+ - 分類問答 - 科學常識 - 發問中 
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為什麼虎頭埤的樹木的樹幹上都綁著一條黑帶子?
Sep 21st 2013, 23:23

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