[求助]费费135中的第64题

Questions 64-65

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.

64. 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.

E.        Unless the city institutes a complex system of parking regulations, the city cannot expect traffic violations to increase.

Choice C just repeats the conclusion: institution of new regulations -> increase of city revenues. it fails to fill the gap between institution of regulations and increase of revenues.

new regulations -> more violations-> more fines collected(increase of revenues)

D is correct.

我也是在C和D中分不清楚。但是觉得答案讲得不是很模糊。俺认为Choice C 不是just repeat the conclusion，而是根本就是跟conclushion的因果关系相反了。文中是说如果new regulation 才revenues increase然后解释原因。而C是说只有revenue increase了才institute new regulation。显然是因果颠倒了。

大家觉得呢？？？

不是的．根据only if A, then B. 　B--->A.    institute new parking regulations--->an increase in city revenues.即重复了结论．