第24题: [单项选择]According to the passage, high-risk persons exclude which of the following kinds of people A. Children suffering from asthma. B. The elderly with chronic pulmonary diseases. C. Middle aged people with chronic heart diseases. D. Nurses taking special care of the sick. 参考答案:D 答案解析:文章四、五、六段分别介绍了几类高危人群,他们包括:需要接受经常性药物治疗的肺部或心血管不适的小孩儿和成人,或是往年接受过此类治疗的患者,包括患有哮喘的儿童;居住在看护病房和任何年龄段的慢性病患住处的人