单选题A large population in an underdeveloped country may lead to ______.Aa rise in work efficiencyBa shortage of farm workersCa decline in grain productionDa reduction in average income

单选题
A large population in an underdeveloped country may lead to ______.
A

a rise in work efficiency

B

a shortage of farm workers

C

a decline in grain production

D

a reduction in average income


参考解析

解析:
答案从文章第二段第四句中找得,意思是说人口数量大使得人均收入减少。A、C两项均没有提到,B项足人口少导致的,故选D。

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