02经济学考卷.pdfVIP

光华人 向上的精神 2002 级经济学 期末考试试卷（3） 2003.8.29 Ⅰ. 不定项选择题（每题 3 分） 1. Opportunity cost: A) is useful when discussing the allocation of resources. B) refers to a next-best alternative that is not chosen when making decisions. C) can be used to measure the cost of something without using monetary prices. 2. 右图中，P*和 Q*分别代表产品 Q 的市 P 场出清价格与数量。给定供给与需求曲线 如右图所示，则用来生产 Q 的某一投入的 价格下降将导致 A) P*上升、Q*增加。 P* B) P*上升、Q*减少。 C) P*上升、Q*保持不变。 D) P*下降、Q*增加。 E) P*下降、Q*减少。 Q 3. Assume that the demand for penicillin Q* is P = 40 - .1Q, while supply is P = 10 + .9Q. Market equilibrium would be given by: A) P = 37, Q = 30 B) P = 30, Q = 37 C) P = 40, Q = 36 D) P = 370, Q = 30 E) None of the above 4. 如果产品 X 的需求曲线左移，同时 X 的供给曲线右移，则 A) X 的价格上升，但其成交量的增减无法确定。 B) X 的价格上升，成交量增加。 C) X 的价格下降，成交量减少。 D) X 的价格下降，但其成交量的增减无法确定。 E) X 的价格升降与成交量增减均无法确定。 5. Recently a railroad asked the state commerce commission for permission to increase its commuter rates by 20 percent. The railroad argued that declining revenues made this rate increase essential. Opponents of the rate increase contended that the railroads revenues would fall because of the rate hike. It can be concluded that: A) the railroad felt that the demand for passenger service was elastic and the opponents of the rate increas