题目内容
The history of trams, streetcars or trolley systems, began in late nineteenth century.
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The first mechanical trams were powered byelectricity.
Some tramwaysused petroltrams, such assome linesin StockholmsandKarachi.Parisoperated trams that were powered bycompressed air.
Please fill in the blanks with appropriate words according to the Chinese, most of the sentences are taken from the text of Section B.(有轨电车)can be much more efficient in terms of road usage – one vehicle replaces about 40 cars (which take up a far larger area of road space).
Trams and (轻轨)systems can be cheaper to installthan subways or other forms of heavy rail.
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