Question 21-22 If the city council institutes new parking regulations, city revenues will surely increase, since studies have conclusively shown that, if such parking regulations are put into effect, there is an increase in parking violations, and an increase in parking violations will result in a greater number of parking fines collected. 22. If the statements in the passage are true, which one of the following must also be true? (A) Unless there is an increase in the number of parking violations in the city, city revenues will not increase. (B) If the city council institutes new parking regulations, the council will fall from favor with the citizens. (C) The city council will institute new parking regulations only if an increase in city revenues can be expected to result. (D) If the city council’s new regulations cause more parking violators to be ticketed, the city revenues will increase. D 我的理解是这样的：Premise: pr->cr, pr->pv->pf 可是这样理解是的不出D选项的：pf->cr 除非这个题的问法改为as an premise inserted into the context,但很显然不是的，而是得出的结论，这就很牵强了 | 
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发表于 2007-3-16 01:42:00
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