阿摩線上測驗
42. What was true of watches before the 1900s?
(A) They were too expensive to buy.
(B) They were made in large quantities.
(C) They were available for factory workers.
(D) They were usually found in public places.
答案：登入後查看
統計： A(15), B(12), C(3), D(4), E(0) #1203678
統計： A(15), B(12), C(3), D(4), E(0) #1203678
