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asdry

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Whatsscience: ½ð±Ò+1 2013-05-23 11:26:16
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Whatsscience

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corrtest

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Сľ³æ: ½ð±Ò+0.5, ¸ø¸öºì°ü£¬Ð»Ð»»ØÌû
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4Â¥: Originally posted by corrtest at 2013-05-23 11:31:18
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