以下（ ）英语表示为“乘扶梯上楼，然后向左转”。
A.A.Take the escalator upstairs,and turn left.
B.B.Take the escalator upstairs , and turn right.
C.C.Those are dangerous articles. You are not allowed to take them on board.
D.D.I want to recharge my IC card.
正确答案是A