阿摩線上測驗
29 In some airports, there is the final call announcement, but in others, they only have ____ signals on the sign
board. Passengers are responsible for their own arriving at the boarding gate in time.
(A) image
(B) blinking
(C) faulty
(D) traffic
答案：登入後查看
統計： A(8), B(32), C(4), D(5), E(0) #742960
統計： A(8), B(32), C(4), D(5), E(0) #742960