皮皮学，免费搜题
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搜题
【单选题】
甲型肝炎的主要传播方式是：A.
空气传播
B.
粪-口传播途径
C.
体液传播
D.
接触传播
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反馈参考答案：
举一反三
【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,
A.
how are you?
B.
I don’t either
C.
They like her
D.
She’s unfriendly
【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:
A.
满足曲率过渡
B.
轨距加宽和超高过渡的需要
C.
保证乘客舒适安全
D.
特定条件下可以不设置 缓和曲线
【单选题】The clothes in our shop are very cheap (便宜的). Anybody can _____ our prices. [ ]
A.
take
B.
buy
C.
af ford
【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.
A.
operate
B.
operation
C.
operating
D.
operative
【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.
A.
habit
B.
intention
C.
action
D.
practice
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