单选题
Without electronic computers, much of today's advanced technology______achieveD．
A、
will not have been
B、
have not been
C、
would not have been
D、
had not been
【正确答案】
C
【答案解析】
此句为虚拟句，前部分为隐蔽式条件句，可还原为If there had not been electronic computers, much of today (s advanced technology would not have been achieved).
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