CAPTCHA 的意思是全自动区分计算机和人类的图灵测试(Completely Automated Public Turing test to tell Computers and Humans Apart,简称CAPTCHA)。名字听起来有点拗口,但也非常直白地描述了这些傻乎乎的方框的用途。 那什么是图灵测试?图灵测试是计算机科学家艾伦·图灵在 1950 ...
HANGZHOU, Sept. 21 (Xinhua) -- China's space station has gained initial results in the field of space medicine that will contribute to future manned lunar landings and other deep space exploration ...