When Melissa Mahan and her husband visited the Netherlands, they felt imprisoned by their tour bus. It forced them to see the city according to a particular【C1】______as well as a specific【C2】______—but going off on their own meant【C3】______the information provided by the guide. On their return home, they started a new company called Tour Coupes. Now, when tourists in San Diego【C4】______one of their small, brightly coloured three-wheeled vehicles, they are【C5】______to a narration over the stereo system【C6】______the places they pass, triggered by Global Positioning System(GPS)satellite technology. This is just one example of how GPS is being used to provide new services to tourists. A tourism firm began offering a【C7】______service in Montgomery, Alabama The city is【C8】______with sites associated with two important【C9】______in American history, the civil war of the 1860s and the civil-rights movement a century later. Montgomery has a 120-year-old streetcar system, called the Lightning Route, which【C10】______around the downtown area and is【C11】______used by tourists. On the Lightning Route streetcars, GPS-triggered audio clips point out historical【C12】______. If such services can prove【C13】______, the use of audio-guide devices could give way【C14】______a different approach. Now, a(n) 【C15】______number of mobile phones have built-in GPS or can determine their【C16】______using other technologies. Information for tourists delivered【C17】______phones could be updated in real time. "Location-based services", such as the ability to call up a list of nearby banks or pizzerias, have been talked about for years【C18】______have never taken off. Aiming such services【C19】______tourists makes sense—since people are more likely to want information when in a(n) 【C20】______place. It could give mobile roaming a whole new meaning.
单选题
【C1】
【正确答案】
A
【答案解析】解析：文章首句提到，当地的旅游巴士就像囚车一样(they felt imprisoned by their tourbus)，旅游巴士走的“路线”是特定的，因此选A项route“路途，路线”。