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题库 / Prep2007E2-CR-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?
Quality rather than price is a major factor in determining the type of steel to be used for a particular application.
Foreign steel mills have long produced grades of steel comparable in quality to the steel produced by the big American mills.
American quotas on imported goods have often induced other countries to impose similar quotas on American goods.
Domestic "mini-mills" consistently produce better grades of steel than do the big American mills.
Domestic "mini-mills" produce low-volume, specialized types of steel that are not produced by the big American steel mills.
imposition 征收，强加
P:强制配额会 help 小钢铁厂，而不会help大厂
C:因为小钢铁厂 从大厂那里抢更多的生意，比没有配额限制时 外国厂从大厂那里抢的更多
（小比外国抢生意更多）
E：小厂生产的，大厂不生产------小厂和大厂无竞争关系----小厂不会抢大厂的生意----就不可能比外国人抢的多
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