Introduction - If you have any usage issues, please Google them yourself
Designed for the major schools, the school and distance education center published review material, as experimental material courseware to the students designed a dedicated upload and download system. Program is designed with a variety of popular data protection methods, such as md5, landing random numbers to ensure the security of the data, the will not be downloaded, even if the is lost and will not divulge the password, full-featured unlimited free to use end of the year