http://cme.etvonline.tv/episode-intro.php |
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http://etv.edb.gov.hk/resource_grade-c.aspx?id=chi&subject=4 |
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http://www.beijingputonghua.com/gapsk/index.htm |
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http://pth.linqi.org/pinyinjs/index.html |
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http://lc.ust.hk/~material/pinyin/index.html |
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http://www.schoolfree.com/schoolfree/tw/pinyin/index.asp?Type=2&Lesson=1 |
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http://www.rthk.org.hk/channel/pth/ |
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http://www.pep.com.cn/xiaoyu/jiaoshi/ |