单选题 Businessmen who run factories usually set up their factories in places where ______.
A. local supplies of coal and electric power are easily gained
B. there is a big river
C. there are a lot of factories
D. the factories are easily reached by road and railway

【正确答案】 D

【答案解析】本题问开工厂的人一般会把工厂建在什么地方。从本文第二段最后一句可找到答案。A“能容易获得煤和电的地方”，与原文不符。原文提到工业家们依靠煤和电使工广运行；B“有大河的地方”，原文未提到；C“有许多工厂的地方”，原文也未提；D“依靠公路、铁路能到达工厂的地方”，与原文一致，为正确答案。