第3题: [单项选择]属于乙类传染病的是()。 A. 霍乱、鼠疫 B. 传染性非典型肺炎、鼠疫 C. 艾滋病、流行性出血热 D. 黑热病、禽流感 E. 风疹、流行性斑疹伤寒 参考答案:C 答案解析:1.甲类传染病是指:鼠疫、霍乱。 2.乙类传染病是指:传染性非典型肺炎、艾滋病、病毒性肝炎、脊髓灰质炎、人感染高致病性禽流感、麻疹、流行性出血热、狂犬病、流行性乙型脑炎、登革热、炭疽、细菌性和阿米巴性
第6题: [单项选择]It is implied in the passage that the .babies at the day-care center ______. A. were born of. mothers with higher IQs B. were more closely attended to by their mothers C. were reared under a more favorable environment D. were given more medical care than those at home 参考答案:C 答案解析:[解析] 从文章第二段分析可知,在day-care center抚养的孩子的智商比在家里抚养的孩子的智商要高,从而可以确定答案为[C]。文章第一段提到,这两类孩子都被给予了医疗照顾,妈妈的智商都差不多