阿摩線上測驗
2. Elderly shoppers in this store are advised to take the elevator rather than the _____, which may move
too fast for them to keep their balance.
(A) airway
(B) operator
(C) escalator
(D) instrument
答案：登入後查看
統計： A(46), B(39), C(419), D(21), E(0) #2611661
統計： A(46), B(39), C(419), D(21), E(0) #2611661
