秦汉时期,中国已经开始走向世界,世界也开始注目中国。下列史实最能说明世界注目中国的是( )A.汉明帝派人赴西域求取佛经 B.汉代陆上丝绸之路最远抵达印度半岛南端 C.大秦安敦王朝派出使者来到中国 D.中国造纸术经阿拉伯传到非洲和欧洲 答案:C As we know, _______ medical examination will help us find out health problems as early as possible. A. normal B. general C.regular D. common