第19题: [单项选择]Why has the growing population of young people caused the changes in museums A. Because they are wealthy. B. Because they are stronger. C. Because they have more spare time. D. Because they are better educated. 参考答案:D 答案解析:由第四段的内容可知,年轻一代人口的增长是导致博物馆发生变化的一个重要因素,因为很多年轻人都是有着创新精神和参与意识的大学(毕业)生,即受过良好的教育。故[D]正确。[A]和[C]是讲的one caus