光明村今年每百户拥有彩电121台,比去年增加66台,今年比去年增加了百分之几?
The Special Olympics World Games include many events similar to ____ in the Olympics.
已知实数a,b满足2a2﹣5lna﹣b=0,c∈R,则a-c2+b+c2的最小值为( )
比尔盖茨的名言:“生活是不公平的,你要去适应它。”对此正确的理解是( )