问答题 Every time a population doubles, the country involved needs twice as much of everything, including hospitals, schools, resources, food and medicines to care for its people.

【正确答案】

【答案解析】人口每增加一倍，相关国家所需要的所有东西都要增加一倍，包括医院、学校、资源、食品和其人民所需要的医药等。