16. What does the term "Platform" refer to in a Metro context?
(A) The place where passengers wait for the train
(B) The roof of a metro station
(C) The driver's cabin in the train
(D) The tunnel that the train passes through
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統計: A(204), B(9), C(3), D(5), E(0) #3154192
統計: A(204), B(9), C(3), D(5), E(0) #3154192