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老师是西城区重点学校的，教学形式是在线视频直播
supertyuan
(supertyuan)
如题
(#11139109@0)
Last Updated: 2017-10-25
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有想上北京小学数学的么？孩子一直在学，同步北京重点小学的教材和进度，每周一次。
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