2级

单选题From the passage, __________are most likely to catch colds?

参考答案:A进入在线模考
[分析]推断题型
通读全文,文章提到婴儿、某年龄段的男孩、女孩、孕妇易患感冒,后面还谈到家庭经济状况与感冒间的联系;但其中作者提到:Infants are the most cold.ridden group,averaging more than six colds in their first year.Boys have more colds than girls up to age three.(婴儿是感冒的最易感人群,在第一年平均要患六次以上;三岁前,男孩比女孩更易患感冒),因此A为答案。