Many Americans have been feeding a baby aspirin once a day, believing it would protect them from a heart attack, a stroke, and e

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问题     Many Americans have been feeding a baby aspirin once a day, believing it would protect them from a heart attack, a stroke, and even cancer. But several recent studies have 【C1】________this into question.
    One large-scale study【C2】________more than 19,000 healthy people ages 65 and older. Participants were【C3】________assigned to take either 100 mg of aspirin (slightly more than the 81 mg dose that【C4】________people take) or a placebo (a harmless substance given to a sick person【C5】________medicine, without telling them it is not real) every day for an average of 4.7 years.【C6】________did people in the aspirin group not【C7】________their risk of heart disease, dementia, or disability, but they were also more【C8】________to suffer from significant bleeding in the digestive tract or brain. And they were more likely to die【C9】________apparently because of an increased risk of【C10】________cancer.
    【C11】________, a trial of more than 12,500 people ages 55 and older【C12】________to have a moderate cardiovascular risk found no benefit to taking aspirin daily. In a study of more than 15,000 people with diabetes, a daily aspirin did【C13】________heart attacks and strokes, but it also【C14】________ major bleeding. And according to an analysis of data from more than 117,000 people,【C15】________ people needed larger doses of aspirin to help【C16】________their risk of heart attack, stroke, and cancer.
    The bottom line: Although there is good【C17】________that aspirin can help people who have already had or are at【C18】________risk for heart attacks or strokes, the drug’s【C19】________is not so clear for people, especially older people, with less risk.【C20】________your doctor before starting—or stopping—aspirin.
【C11】

选项 A、However
B、Subsequently
C、Consequently
D、Similarly

答案D

解析 本题空格处需要填入一个副词,需满足空格句意“________,一项针对超过1. 25万个55岁及以上、________患有中等风险患心血管疾病的人的试验发现,每天服用阿司匹林没有任何好处。”第二段说实验证明每天服用阿司匹林并没有益处,还很有可能引发其他疾病;第三段首句后半句说…found no benefit to taking aspirin daily (发现每天服用阿司匹林没有任何好处),它正是对第二段的呼应,此处的副词词义应该表达“相应地,同样地”,四个选项中只有D项Similarly意为“相似地;同样”,符合句意,故为答案。A项However意为“然而,但是”;B项Subsequently意为“后来随后”;C项Consequently意为“因此,结果”,三个选项代入原文均不符合句意,故排除。
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