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求分析句子结构Exposuretosustainednoisehasbeenclaimedtoimpairbloodpressureregulationinhumanbeingsand,particularly,toincreasehypertension,eventhoughsomeresearchershaveobtainedinconclusiveresultsthatobscuretherelations

题目详情
求分析句子结构
Exposure to sustained noise has been claimed to impair blood pressure regulation in human beings and,particularly,to increase hypertension,even though some researchers have obtained inconclusive results that obscure the relationship.
其中Exposure to 是倒桩么 ,主语在哪
▼优质解答
答案和解析
主语:Exposure
to sustained noise 是对应的介词短语