听力原文：M: Are traveling facilities good in the rest of Britain？W: Well, we've got the ra
听力原文：M: Are traveling facilities good in the rest of Britain？
W: Well, we've got the railways that connect all our big towns. There're over 13,000 miles of track in Britain. Rail transport provides a very important service to the public, to industry and commerce.
M: What about road transport？ Are your roads good？
W: Yes, they are on the whole. We've got about a quarter of a million miles of roads, and multi-motorways are appearing everywhere. We should have over one thousand miles of motorways soon.
M: Is there a good internal air service in Britain？
W: Well, yes. But it is not as important as our rail and road transport systems.
M: But British air services, the BEA and the BOAC, are world famous, aren't they？
W: Oh yes, our international air services are very good. London Airport is one of the busiest airports in the world.
M: What about travel by sea？
W: As an island people and a trading nation, Britain's seafaring traditions have always been great. We used to have the biggest merchant navy in the world, carrying a third of the world's passengers, you know.
M: But I suppose today sea travel has diminished in importance, hasn't it？
W: It has. But some people still prefer traveling by sea to any other forms of transport.
(20)
A．There are over 1,000 miles of track in Britain.
B．In Britain there are about 250,000 miles of track.
C．There are over 13,000 miles of track in England.
D．In England there are 133,000 miles of track.
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