[求助]Really confused!

TonyTu

Hello everyone,

I don't know why C is wrong in question number 1 and why E is the right answer in question number 2, can anybody help?

Really appreciate it!

Tony

1) 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

2). Because of the recent transformation of the market, Quore, Inc., must increase the next two years, or it will certainly go bankrupt. In fact, however, Quore's production structure is such that if a 10 percent productivity increase is possible, then a 20 percent increase is attainable.

If the statements above are true, which one of the following must on the basis of them also be true?

(A) It is only Quore's production structure that makes it possible for Quore to survive the transformation of the market.

(B) Quore will not go bankrupt if it achieves a productivity increase of 20 percent over the next two years.

(C) If the market had not been transformed, Quore would have required no productivity increase in order to avoid bankruptcy.

(D) Because of the transformation of the market, Quore will achieve a productivity increase of 10 percent over the next two years.

(E) If a 20 percent productivity increase is unattainable for Quore, then it must go bankrupt.

[此贴子已经被作者于2005-1-13 11:33:58编辑过]

Baker

(1) The answer C does not address spring.

(2) The first sentence means Q must increase or it  will gone. The answer 5 is just a paraphrase of this meaning.

TonyTu

Thanks a lot, 侠客!!

Your explanation about Q1 makes perfect sense. As for Q2, can you please elaborate a littIe bit?  If Q can't attain a 20% productivity increase, it only means 10% increase is not possible. But the statements do NOT specify that Q must go bankrupt if it achieves 10% or less increase. What if it gains a 8% increase? Does this mean it must go bankrupt according to the original statements?

Thanks,

Tony