英语六级

单选题The ISTP study examined public and private systems in thirty-seven cities around the world.

参考答案:A进入在线模考
题干中专有名词ISTP和数字thirty-seven是很明显的定位词,将答案快速确定到A段ISTP has demonstrated that public transport is more efficient than cars.The study compared the proportion of wealth poured into transport by thirty-seven cities around the world.This included both the public and private costs of building, maintaining and using a transport system.可以发现题干是对这一部分的简化.所以正确答案是A。