2.                     
                              
                  
                      
                  
                      
          OCW makes the materials used in the teaching of MIT's subjects available on the Web.
           
           
           
          Learn more about how to use OpenCourseWare. Click to get started.
                              
                 
             
             
                          
             
              1. 
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http://wap.nhde20.cn |

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http://5g.nhde20.cn |

http://mobile.nhde20.cn |

http://vip.nhde20.cn |

http://ios.nhde20.cn |

http://anzhuo.nhde20.cn |

http://90.nhde20.cn |

http://d.nhde20.cn |

http://117e.nhde20.cn |

http://www.nhde20.cn/906.html |

http://www.nhde20.cn/eb.html |

http://www.nhde20.cn/c51.html |

 揷进去时的视频