第30题:[单选题]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. 参考答案:A