When a population doubles, the country involved needs twice as much of everything, including ______.
- AA) hospitals and medicines
- BB) schools and students
- CC) food and manpower resources
- DD) all of the above
问题
When a population doubles, the country
参考解析：
A[试题分析] 细节题。[详细解答] 根据本文倒数第二句...including hospitals， schools，resources，food and medicines to care for its people．显然，答案应为A。B，C两项的students和manpower re sources并不包含在内，由此判断，后三项都不正确。
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