阿摩線上測驗
127. Passengers traveling on the express train are requested to _________ from using mobile phones in the quiet carriage.
(A) refrain
(B) restrict
(C) refuse
(D) reject
答案：登入後查看
統計： A(95), B(115), C(16), D(17), E(0) #3804485
統計： A(95), B(115), C(16), D(17), E(0) #3804485
