题型:问答题 简答题 Which of the following most accurately describes a market structure that has one seller of a specific, well-defined product that has no good substitutes()A. Oligopoly.B. Monopoly.C. Monopolistic competition. 查看答案
题型:问答题 简答题 漫画《人人有希望,个个没把握》风趣地反映出2008年美国总统竞选的激烈与紧张。按照美国宪法的规定,总统最终由()A.参议院选出B.众议院选出C.选举人选出D.参众两院联席会议选出 查看答案