以下是引用phdpass在2003-11-16 23:23:00的发言:费费逻辑宝典第65题:
According to advertisements,
the higher a suntan lotion’s sun protection factor, or SPE, the more protection from sunburn. In order for a suntan lotion to work, however, one has to remember to put it on before going in the sun, put on an adequate amount to cover the skin, and reapply it as needed.
Therefore, it really does not matter what SPE a suntan lotion has.
Which one of the following best identifies the error in reasoning made in the passage?
a. It is unreasonable to assume that the only purpose of a suntan lotion is to provide protection from sunburn.
b. Because some people get sunburned more easily than other, the fact that there are different SPEs cannot be ignore.
c. It cannot be concluded that the SPEs is not important just because there are requirements for the application of the suntan lotion.
d. It is unreasonable to assume that all suntan lotions required the same application procedures in order to work effectively.
e. There is no reason to assume that manufacturers are unaware people sometimes forget to apply suntan lotion before going in the sun.
答案是c, 为什么不是b呢? 原文中没有说SPE 不重要啊。问的是哪种SPE 吧。
费费逻辑宝典第70题
A low-pressure weather system is approaching Plainville; rainfall results from about 70% 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 determining the probability that Plainville will have a thundershower soon?
a. the percentage of the 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 lower-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 nearby towns
the answer is b. why not c?
