Without computers ,we ____the tremendous medical advancement in the last few decades
Awould not makeBcouldn't have made 为什么不能选择A
人气：323 ℃ 时间：2020-05-15 20:33:10
解答
因为题中有时间状语提示词
the last few decades,说明是对过去的虚拟,所以得用could would 加完成时,而A是对现在的虚拟
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