理论上说，异步电机（）A：既能作电动机，又可作发电机 B：只能作电动机 C：只能作发电机

Train No.	From	To	Departure（离开）time	Arrival time
11	Beijing	Shenyang	6:35	17:50
186	Chengdu	Taiyuan	22:50	5:05
185	Taiyuan	Chengdu	13:09	19:30
271	Tianjin	Beijing	8:35	10:21

小题1:The train from Beijing to Shenyang leaves at _______.
A. 5:05                    B. 6:35                    C. 8:35   
小题2:We have to spend _____ on the train if we go to Shenyang from Beijing.
A. 17 hours and 50 minutes             B. 6 hours and 35 minutes
C. 11 hours and 15 minutes
小题3:If you want to go to Chengdu from Taiyuan, you should take the _____ train.
A. No. 11                  B. No. 185              C. No. 186   
小题4:The No. 186 train arrives in Taiyuan at _____.
A. 5:05 am                 B. 10:50 pm                C. 5:05 pm
小题5:It takes _____ from Tianjin to Beijing by train.
A. less than two hours        B. more than two hours     C. about an hour