A-A+
Without computers much of the advanced techno
问题详情
Without computers, much of the advanced technology______.
A．would not be achieved
B．would not be achieve
C．haven"t achieved
D．would not have been achieved
参考答案
正确答案：D
解析：本题考查的是虚拟语气。without=If…not，这里是对过去情况的假设．表示与实际相反，基本结构是：If…had not…，…would not have…。另外在这里，主语technology是被完成，故用被动语态，因此选D。
