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Greengas, an automobile fuel made from plants, is now available in Ternland. Using Greengas to drive a given distance costs less than using gasoline and, moreover, results in less pollution. So anyone who drives a car regularly in Ternland can save money and help protect the environment by switching to Greengas.

第1题

Which of the following, if true, most seriously weakens the argument in the advertisement?

AThe number of motor vehicles registered in Ternland has been steadily increasing in recent years and is projected to continue to increase.
BCars that use Greengas for fuel still require petroleum-based oils for lubrication.
CLarge trucks, which produce much more pollution than cars, cannot be easily fitted to run on Greengas.
DThe process for making Greengas from plants generates no more pollution than the process of refining regular gasoline in equivalent quantities generates.
EMany drivers in Ternland's rural areas who switch to Greengas will have to go out of their way to find a station that sells it.

E显示答案

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