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PREP07-PACK2-CR： 39-48题 （答案请用红色标出）
39. The imposition of quotas limiting imported steel will not help the big
American steel mills. In fact, the quotas will help "mini-mills" flourish in the
United States. Those small domestic mills will take more business from the
big American steel mills than would have been taken by the foreign steel mills
in the absence of quotas.
Which of the following, if true, would cast the most serious doubt on the claim
made in the last sentence above?
逻辑链分析：
(A) Quality rather than price is a major factor in determining the type of steel
to be used for a particular application.
选项A 简析：
(B) Foreign steel mills have long produced grades of steel comparable in
quality to the steel produced by the big American mills.
选项B 简析：
(C) American quotas on imported goods have often induced other countries to
impose similar quotas on American goods.
选项C 简析：
(D) Domestic "mini-mills" consistently produce better grades of steel than do
the big American mills.
(E) Domestic "mini-mills" produce low-volume, specialized types of steel that
are not produced by the big American steel mills.
40. A recent report determined that although only three percent of drivers on
Maryland highways equipped their vehicles with radar detectors, thirty-three
percent of all vehicles ticketed for exceeding the speed limit were equipped
with them. Clearly, drivers who equip their vehicles with radar detectors are
more likely to exceed the speed limit regularly than are drivers who do not.
The conclusion drawn above depends on which of the following assumptions?
逻辑链分析：
(A) Drivers who equip their vehicles with radar detectors are less likely to be
ticketed for exceeding the speed limit than are drivers who do not.
选项A 简析：
(B) Drivers who are ticketed for exceeding the speed limit are more likely to
exceed the speed limit regularly than are drivers who are not ticketed.
选项B 简析：
(C) The number of vehicles that were ticketed for exceedin
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