第25题: [单项选择]Questions refer to the following graph.In 1984 the average cost of operating a subcompact car was approximately what percent less than the average cost of operating a midsized car 参考答案:C 答案解析:[解析] 从图中可以看出在1984年开一辆微型汽车每英里的平均成本是0.36美元,而开一辆中型汽车每英里的平均成本是0.48美元。根据题意可得:[*]