【单选题】B. Choose the best answer. 1. Where do your grandparents live?
A.
No, they live in the country.
B.
They lived in the city.
C.
They live in the country.
D.
They used to live in the country.
【单选题】Thid is our manager, Sarah. She is on charge of our shop. Hello,
【判断题】缓和曲线通常是设置在直线和圆曲线之间的过渡曲线,圆曲线和圆曲线之间不必设置缓和曲线
【多选题】在地铁线路上,直线和圆曲线之间设置的缓和曲线,其目的在于:
【单选题】The clothes in our shop are very cheap (便宜的). Anybody can _____ our prices. [ ]
【单选题】He often buys things in our shop. He is a customer to our shop. [ ]
【简答题】在直线和圆曲线之间设置的 _________ ,其作用在于列车由直线驶向或驶离圆曲线(或直线),使离心力逐渐产生或消失,并减缓外轮对外轨的冲击,保证行车平顺。
【单选题】C. Choose the best answer to complete each sentence. 1. The of a big new machine can be hard to learn.
【判断题】缓和曲线是设置在直线和圆曲线之间或圆曲线和圆曲线之间的一种曲率连续变化的曲线。
【单选题】Although it is not our normal to give credit in our shop,this time I think we should consider the matter more closely.