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  3. Anger and other strong emotions can trigger potentially deadly heart rhythms in certain vulnerable people. Previous studies

Anger and other strong emotions can trigger potentially deadly heart rhythms in certain vulnerable people. Previous studies

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问题      Anger and other strong emotions can trigger potentially deadly heart rhythms in certain vulnerable people.
     Previous studies have shown that earthquakes, war or【C1】______ the loss of a World Cup Soccer match can increase【C2】______ of death from a sudden cessation(停止) of heartbeat,【C3】______ the heart stops circulating blood. "It’s【C4】______ been shown in all different ways that when you put a whole【C5】______ under a stressor that sudden death will increase," said Dr. Rachel Lampert, whose study【C6】______ in the Journal of the American College of Cardiology. "Our study starts to look【C7】______ how this really affects the electrical system of the heart," Lampert said.
     She and colleagues studied 62 patients with heart【C8】______ and implantable heart defibrillators (电震发生器) or ICDs that can【C9】______ dangerous heart rhythms or arrhythmias(心律失常) and deliver an electrical shock to restore a normal heart【C10】______ . "These were people we know already had some 【C11】______ to arrhythmia," Lampert said in a telephone interview. Patients in the study took part in an exercise in which they【C12】______ a recent angry episode【C13】______  Lampert’s team did a test called T-Wave Alternans that【C14】______ electrical instability in the heart.
     Lampert said the team specifically asked questions to get people to relive the angry【C15】______ . "We found in the lab setting that yes, anger did increase this electrical instability in these patients," she said. "The people who had the【C16】______ anger-induced electrical instability were 10 times more【C17】______ than everyone else to have an arrhythmia in follow-up,"  she  said. Lampert said the study【C18】______ that anger can be deadly, at least for people who are already vulnerable to this type of electrical disturbance in the heart. "It says yes,【C19】______ really does impact the heart’s electrical system in very【C20】______ ways that can lead to sudden death," she said.  
【C2】
选项 A、percentage
B、ratios
C、amount
D、rates
答案D
解析 语义衔接题。根据上下文，前文所提到的地震、战争还有输掉一场世界杯足球赛均为导致心脏停跳而引起猝死的可能的原因，但并不是一定导致心脏停跳，因此这些原因增加了心脏停跳引起猝死的几率，而不是数目或数量。故本题答案为D。
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