阿摩線上測驗
57. According to what I have learned in my introductory economics class, cost is
determined by ________ and demand.
(A) salacity
(B) scarcity
(C) security
(D) sublimity
答案：登入後查看
統計： A(35), B(101), C(12), D(19), E(0) #1595569
統計： A(35), B(101), C(12), D(19), E(0) #1595569
