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刚才和roommate打赌,关于熟石膏是硫酸钡还是硫酸钙,结果我输了,一顿自助餐啊!还有想去吃的吗?答对了免费,答错了自费!
chineseguest_ca
(chineseguest)
(#291538@0)
Last Updated: 2001-12-9
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刚才和roommate打赌,关于熟石膏是硫酸钡还是硫酸钙,结果我输了,一顿自助餐啊!还有想去吃的吗?答对了免费,答错了自费!
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