单选题以下（）英语表示为“乘扶梯上楼，然后向左转” 。

A、 Take the escalator upstairs, and turn left.
B、 Take the escalator upstairs , and turn right.
C、 Those are dangerous articles. You are not allowed to take them on board.
D、 I want to recharge my IC card.

【正确答案】 A

【答案解析】