Renren Communications is Guangzhou Renren Communications Technology Company Limited, the company's scope of business is: information technology consulting services; medical supplies and equipment retail (excluding drugs and medical devices); electronic equipment recycling technology consulting services; integrated circuit design. Communication technology research and development, technical services; scientific and technological information consulting services; scientific and technological project evaluation services and so on.
CAPTCHA stands for "Completely Automated Public Turing test to tell Computers and Humans Apart". CAPTCHA stands for "Completely Automated Public Turing test to tell Computers and Humans Apart", and is a public **** fully automated program that distinguishes whether a user is a computer or a human.