A、It keeps blood vessels from being blocked. B、It speeds up their recovery after surgery. C、It increases the blood flow to the h

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问题  
A new study reports the common drug aspirin greatly reduces life threatening problems after an operation to replace blocked blood vessels to the heart. More than 800,000 people around the world have this heart surgery each year. The doctors who carried out the study say giving aspirin to patients soon after the operation could save thousands of lives (26) . People usually take aspirin to control pain and reduce high body temperature. Doctors also advise some people to take aspirin to help prevent heart attacks. About 10 to 15 percent of these heart operations end in death or damage to the heart or other organs. The new study shows the even a small amount of aspirin reduced such threats. The doctors said the chance of death for patients who took aspirin would fall by 67%. They claimed this was true if the aspirin was given within 48 hours of the operation. The doctors believe aspirin helps heart surgery patients because it can prevent blood from thickening and blood vessels from being blocked (27) . However, the doctors warned that people who have stomach bleeding or other bad reactions from aspirin should not take it after heart surgery (28) .

选项 A、It keeps blood vessels from being blocked.
B、It speeds up their recovery after surgery.
C、It increases the blood flow to the heart.
D、It adjusts their blood pressure.

答案A

解析 题目问根据医生的观点,阿司匹林是如何帮助接受了心脏手术的病人的。原文提到“The doctors believe aspirin helps heart surgery patients because it can prevent blood from thickening and blood vessels from being blocked”,可见阿司匹林可以防止血液变稠和血管堵塞。
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