)The London Underground (usually called the tube) is the biggest subway system in the world It is also the fastest way to travel in the city The network consists of nine major routes called “lines”You can buy tickets at any underground station at a ticket office, or from a ticket machine Some of the ticket machines require exact money All of the machines display “Change given” or “Exact money only” signs The price of the ticket depends on the length of the trip The longer the trip, the higher the cost of ticketTrain stop at all stations On some trains, passengers need to press a button to open doors Every underground train car has maps that show all the stations on the line you are traveling on There is a map of the whole underground system in every stationSmoking is not allowed on underground trains or in stations(1)According to the passage, the other name of the subway in London is ___( )
A campus emergency ______ occur at any time of the day or night, weekend, or holiday, with little or no warning.
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