| 1. | From mechanical kinetics to the internet , from improvements in various surgical techniques to outer space landings and embryo cloning , the development of science and technology in the 20th century has progressed at a pace beyond imagination , especially in the last forty to fifty years . breakthroughs in medical science and the invention of computers have transformed and extended human life
一科技的长足发展从机械动力到电脑网络,从各种内科手术的改进到登陆外星球和胚胎复制, 20世纪的科技发展早已不止一日千里,特别是近四五十年来,医学上的突破和电脑的发明,让人类生活为之改观,寿命大为延长。 |
