The tram lines in Beaver City all have their own number. Unfortunately the numbers are only shown on this map.
比弗市的有轨电车线路都有各自的编号。遗憾的是，这些编号仅在这张地图上有标注。
You cannot see the line number anywhere when you are on a tram!
当你在有轨电车上时，根本看不到线路编号！
You get onto a tram at the main depot where all the lines begin.
你在所有线路的起点——主车厂登上一辆有轨电车。
After three stations your tram makes a turn, and at the next station it makes another turn.
过了三站，您的有轨电车转弯，再下一站又转弯。
Four stations later you have arrived at your destination.
四站之后，您已到达目的地。
Question: 问题:
Which tram line were you on?
你当时在哪个有轨电车线路？
A. 1
B. 2
C. 5
D. 6
E. 8
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