1.                     
                              
                  
                      
                  
                      
          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.
                              
                 
             
             
                          
             
              2. 
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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://5.nhde20.cn |

http://8778.nhde20.cn |

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http://808.nhde20.cn/d3a8f.html |

http://808.nhde20.cn/ee3eb3.html |

 拍拍拍的全过程的视频