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. 
http://www.ilxs21.cn |

http://m.ilxs21.cn |

http://wap.ilxs21.cn |

http://3g.ilxs21.cn |

http://4g.ilxs21.cn |

http://5g.ilxs21.cn |

http://mobile.ilxs21.cn |

http://vip.ilxs21.cn |

http://ios.ilxs21.cn |

http://anzhuo.ilxs21.cn |

http://f.ilxs21.cn |

http://14bf.ilxs21.cn |

http://849.ilxs21.cn |

http://www.ilxs21.cn/f1a34.html |

http://www.ilxs21.cn/d8c7a.html |

http://www.ilxs21.cn/337d58.html |

 yy8060