The science of medicine, ________ progress has been very rapid recently, is perhaps the most important of all the sciences．A.in whichB.with whichC.to whichD.for whom
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A解析本题考查“介词+关系代词”的用法。本题考查的是定语从句中的搭配决定了介词的选用，不考虑定语从句时，应该用的是：Progress has been very rapid in the science of medicine recently。