The experts found that driving a car turned out to be the most common source of traffic exposure.However,using public transportation and riding a bicycle were also other forms of traffic exposure.The researchers reported that 8% of all heart attack cases were specifically linked to having been in traffic.In general,time spent in any type of transportation in traffic was associated with a more than 3 times higher risk of experiencing a heart attack within the first hour immediately following the exposure.
The team has also found that women,elderly men,patients who were unemployed,and those with a history of angina (心绞痛) appeared to be particularly sensitive and were affected the most by traffic.Female participants,in fact,were more likely to have a 5 times greater risk of a heart attack following such exposure,compared to men.
【文章大意】 德国的一项新研究发现,陷入交通堵塞和患心脏病之间有很大联系。
12.The underlined word in Paragraph 2 can be replaced by ________.
A.directions
B.effects
C.tendencies
D.causes
解析:选D。词义猜测题。根据第二段的内容和第三段中的“driving a car turned out to be the most common source of traffic exposure”“8% of all heart attack cases were specifically linked to having been in traffic”以及最后一段中的“greater risk of a heart attack following such exposure”可推知,trigger意为“诱因”,与cause同义。
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