题目

—It is ridiculous (荒唐的) that so many people believe the world will disappear in 2012. —__________ it is true? A. So what     B. What for    C. What if      D. What’s up 答案：C 解析: 略某种商品若按标价的八折出售，可获利20%，若按原价出售可获利 A．25%             B．40%              C．50%              D．66.7%