70. A low-pressure weather system is approaching Plainville; rainfall results from about 70 percent of such systems in the Plainville area. Moreover, the current season, spring, is the time of year in which thundershowers, which sometimes result from low-pressure systems, are most likely to occur in Plainville.
Knowing which one of the following, in addition to the inFORMation above, would be most useful for determine the probability that Plainville will have a thundershower soon?
(A) the percentage of thundershowers in Plainville that occur in the spring
(B) the percentage of spring rainfalls in Plainville that are thundershowers
(C) the percentage of thundershowers in Plainville that result from low-pressure systems
(D) whether low-pressure systems in other areas are associated with rainfall
(E) whether Plainville has more or fewer thundershowers each spring than do near by towns
为什么C 不行， C 不是更直接吗？作者: StephanieYun 时间: 2003-3-25 10:20
strongly recommend to read between the lines in the choices, especially before making your decision .
C is somehow comfusing and obscure, but still clear and easy to find out its deficit as an answer choice.
