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j @ /static/component/logic/ceditor/ceditor.js?v=2016012302351:1

(program):2 Uncaught ReferenceError: $ is not defined

http://img.mukewang.com/user/-80-80.jpg Failed to load resource: the server responded with a status of 404 (Not Found)

jquery.nanoscroller.js.map:1 GET http://www.imooc.com/static/page/course/common/jquery.nanoscroller.js.map 404 (Not Found)