Without computer,we ______the tremendous medical advancement in the past few decades.A.would not make B.will not have made C.could not make D shouldn,t have made选哪个 为什么

Without computer,we ______the tremendous medical advancement in the past few decades.A.would not make B.will not have made C.could not make D shouldn,t have made选哪个 为什么
Without computer,we ______the tremendous medical advancement in the past few decades.
A.would not make B.will not have made C.could not make D shouldn,t have made
选哪个 为什么

Without computer,we ______the tremendous medical advancement in the past few decades.A.would not make B.will not have made C.could not make D shouldn,t have made选哪个 为什么
答案：【D】
【解析】 without作“如果没有”解,表示一种与事实相反的假设,意思上相当于一个 if引导的
虚拟条件句.根据题中可看出without computer是与过去事实相反的假设,因此主句应该
用“would(should,could,might)+动词的完成式”.
无疑后请采纳.
书山有路勤为径,学海无涯苦作舟.
-----------与君共勉-----------

D 额，这个嘛，老师正好教过我这种，这是主句而且又是过去的，所以就这个吧 - - 理由具体我也讲不清