3) My ratio of the marginal utility of coffee to the marginal utility of doughnuts is four. This im
问题描述：
3) My ratio of the marginal utility of coffee to the marginal utility of doughnuts is four. This im
3) My ratio of the marginal utility of coffee to the
marginal utility of doughnuts is four. This implies that
A) I always eat doughnuts with my coffee
B) a cup of coffee is four times less valuable to me than a doughnut
C) a cup of coffee is four times more valuable to me than a
doughnut
D) The price ratio is four to one
请给出理由,重点是C选项对或错在哪儿.谢谢
答
C对用排除法的话,A跟话题无关所以可以排除,D说的是价格,而句子中说的是咖啡或者甜甜圈对我的影响,所以也可以排除.那么就看B和CB和C正好是相反的两个答案,那我们就进一步分析句意了.My ratio of the marginal utility...