问题
单项选择题
If you go to America, you will find that there are better（）by road, rail and air than in London.
A.transport
B.traffic
C.communications
D.vehicle
答案
参考答案：C
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If you go to America, you will find that there are better（）by road, rail and air than in London.
A.transport
B.traffic
C.communications
D.vehicle
参考答案：C