UC知道请分析句子结构，尤其后面的according to起什么作用
来源：百度知道 编辑：UC知道 时间：2024/05/14 10:16:25
The risk of sudden death from triathlons exceed that from marathons,
according to a study presented at the American College of Cardiology's 58th Annual Scientific session
according to a study presented at the American College of Cardiology's 58th Annual Scientific session 是一个状从吗？这个来修饰谓语动词exceed？
according to a study presented at the American College of Cardiology's 58th Annual Scientific session
according to a study presented at the American College of Cardiology's 58th Annual Scientific session 是一个状从吗？这个来修饰谓语动词exceed？
The risk of sudden death(主语) from triathlons（定语） exceed that from marathons（同位语）,
according to（介词，引导一个状语从句） a study presented at the American College of Cardiology's 58th Annual Scientific session （做study的定语）
状语
该句主语是the risk of sudden death, 谓语动词是exceed 。
a study是according to的宾语，presented at the American College of Cardiology's 58th Annual Scientific session 是修饰study的，作后置定语。 这里的study解释为研究，也就是根据展示在 American College of Cardiology's 58th Annual Scientific session 上的研究