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题目材料：

In Stanton the average number of people injured per automobile accident is consistently higher for accidents involving a taxicab than for those not involving a taxicab. Although all Stanton taxicabs are equipped with passenger seat belts, taxicab drivers reporter that passengers tend not to use them. It is likely, therefore, that if taxicab passengers were required to use seat belts, the number of people injured per accident would soon be no higher for taxicabs than for other automobiles.

第1题

Which of the following, if true about Stanton, most seriously weakens the argument?

A The number of automobile accidents has been declining in recent years.
BSince taxicabs are driven more miles annually than most other vehicles, they are more likely to be in an accident during any given year than is the average vehicle.
CThere are more taxicabs in operation, relative to the overall number of motor vehicles, than there are in most cities of Stanton`s size.
D The number of people, including the driver, who occupy a vehicle is generally greater for taxicabs than for other vehicles.
ENot all passengers in automobiles other than taxicabs use seat belts.

D显示答案

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