From the passage，we know “robotic vehicles” are a kind of machines that        ．

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• 1DARPA organized the race in order to        ．

  A.raise money for producing more robotic vehicles

  B.push the development of vehicle industry

  C.train more people to drive in the desert

  D.improve the vehicles for future wars

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• 2Watchers doubted if any of the vehicles could finish the race because        ．

  A.they did not have any human guidance

  B.the road was not familiar to the drivers

  C.the distance was too long for the vehicles

  D.the prize money was unattractive to the drivers

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• 3What is the best title for the passage、

  A.Laos: slow-developing nations

  B.Laos: small steps forward

  C.Laos: least-developed land

  D.Laos: landlocked country

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• 4According to the passage, which of the following is NOT a reason for Laos to be hopeful、

  A.There are no fast-food restaurants in the country.

  B.Laos has a variety of tourist attractions.

  C.Information on the Internet is freely accessible.

  D.The government owns all local media.

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• 5What is the most serious limitation on Laos’ economic growth、

  A.The lack of local skilled workers.

  B.A poor transportation system.

  C.Too much foreign ai

  D.D.Too many foreign workers.

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• 6In the race，the greatest distance one vehicle covered was            ．

  A.about eight miles

  B.six miles

  C.almost two miles

  D.about one mile

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• 7In the last paragraph，the writer implies that there is a long way to go        ．

  A.for a robotic vehicle to finish a 142-mile race without any difficulties

  B.for a little child who has just learned to walk to reach the cookie on the table

  C.for a robotic vehicle to deal with a simple problem that a little child can solve

  D.for a little child to understand the importance of wiping apple juice off its face

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