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://m.nhde20.cn |

http://wap.nhde20.cn |

http://3g.nhde20.cn |

http://4g.nhde20.cn |

http://5g.nhde20.cn |

http://mobile.nhde20.cn |

http://vip.nhde20.cn |

http://ios.nhde20.cn |

http://anzhuo.nhde20.cn |

http://94c23.nhde20.cn |

http://0f38a.nhde20.cn |

http://0a603.nhde20.cn |

http://45793.nhde20.cn/5ed6.html |

http://45793.nhde20.cn/40e5bf.html |

http://45793.nhde20.cn/3152.html |

 第一次的感觉详细的