费费逻辑题求教

njit2007

65. 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 ignored.

(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 that people sometimes forget to apply suntan lotion before going in the sun.

这道题，为什么B不对？

上文说的，人们不需要注意SPE是什么？

B选项说要根据人的特点，注意使用不同的SPE，

这不也是在Weak了吗？

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

这一题为什么选B啊，我觉得C也对的啊？

请教大家了！

72. A gas tax of one cent per gallon would raise one billion dollars per year at current consumption rates. Since a tax of fifty cents per gallon would therefore raise fifty billion dollars per year, it seems a perfect way to deal with the federal budget deficit. This tax would have the additional advantage that the resulting drop in the demand for gasoline would be ecologically sound and would keep our county from being too dependent on foreign oil producers.

Which one of the following most clearly identifies an error in the author’s reasoning?

(A) The author cites irrelevant data.

(B) The author relies on incorrect current consumption figures.

(C) The author makes incompatible assumptions.

(D) The author mistakes an effect for a cause.

(E) The author appeals to conscience rather than reason.

这题我知道ABDE都错，

但是我不知道为什么C对？

望不吝赐教。

njit2007

兄弟姐妹们，帮下忙啊