乐乐课堂_leleketang.com
https://www.baidu.com/sf?pd=video_page&sign=12394301609542619800&word=抛物线+准线+方程+视频&title=抛物线的标准方程&atn=index&alr=1&openapi=1&resource_id=5052&frsrcid=4185&cambrian_id=1584574977447770&sp=0&lid=&backup_lid=&ext=%7B"src"%3A"http%3A%5C%2F%5C%2Fvdse.bdstatic.com%5C%2F%5C%2Ffda9ac979794e60536e696f4538cb7d3%3Fauthorization%3Dbce-auth-v1%252Ffb297a5cc0fb434c971b8fa103e8dd7b%252F2017-05-11T09%253A02%253A31Z%252F-1%252F%252Fc99c87838076dc01c25ac8dd088edee224e7275c4d66eaf01c6a46ed7981268f"%2C"loc"%3A"http%3A%5C%2F%5C%2Fxzh.aivideo.baidu.com%5C%2Fshortvideo%5C%2F222ee3996f2570a278e022812ef6f2cb9.html"%2C"log_loc"%3A"http%3A%5C%2F%5C%2Fxzh.aivideo.baidu.com%5C%2Fshortvideo%5C%2F222ee3996f2570a278e022812ef6f2cb9.html"%2C"duration"%3A"203"%2C"poster"%3A"http%253A%252F%252Ft11.baidu.com%252Fit%252Fu%253D2970729415%252C3384870224%2526fm%253D171%2526app%253D20%2526f%253DJPEG%253Fw%253D854%2526h%253D480%2526s%253D9498AF770DC2EC4D506F9C7E02005078"%2C"source"%3A"%5Cu4e50%5Cu4e50%5Cu8bfe%5Cu5802"%2C"s"%3A"4fc5a291ae508fd21bb2c993d2c599d2"%2C"isHttps"%3A1%2C"isCompilation"%3Anull%2C"jsy"%3A1%7D&top=%7B"sfhs"%3A1%2C"_hold"%3A2%7D&fr=1
这个老师讲完课最后喜欢说一句:为师这就讲完了,好了,徒儿们速速刷题去吧