《铁路旅客运输服务质量规范》规定，普速列车晚点()分钟以上时，根据调度通报，车站要公告列车晚点信息，说明晚点原因、预计晚点时间。
A. 15
B. 20
C. 30
D. 40
What task should Curiosity fulfilled on its first day？
A. Collecting rock samples.
B. Exploring Gale Crater.
C. Raising its antenna.
D. Keeping in touch with orbiters.
What is the news item mainly about？
A. Smooth landing of the rover on Mars.
B. The stunning instruments on the rover.
C. New findings about the planet Mars.
D. Scientists" hard work on the project.
How does the fire affect the local airport？
A. The thick smoke of the fire affects the vision.
B. The airport is forced to close temporarily.
C. The helicopters are refueled at the airport.
D. Airlines have to decide whether to land or not.
微信支付 
支付宝支付