两道逻辑题请教逻辑分析方法

cherrydew · 发表于 2010-8-24 22:49:47

20. Parasitic wasps lay their eggs directly into the eggs of various host insects in exactly the right numbers for any suitable size of host egg. If they laid too many eggs in a host egg, the developing wasp larvae would compete with each other to the death for nutrients and space. If too few eggs were laid, portions of the host egg would decay, killing the wasp larvae.

Which of the following conclusions can properly be drawn from the information above?
(A) The size of the smallest host egg that a wasp could theoretically parasitize can be determined from the wasp’s egg-laying behavior.
(B) Host insects lack any effective defenses against the form of predation practiced by parasitic wasps.
(C) Parasitic wasps learn from experience how many eggs to lay into the eggs of different host species.
(D) Failure to lay enough eggs would lead to the death of the developing wasp larvae more quickly than would laying too many eggs.
(E) Parasitic wasps use visual clues to calculate the size of a host egg.
这个选A 求逻辑分析。。。

19. Industrialists from the country Distopia were
accused of promoting the Distopian intervention in
the Arcadian civil war merely to insure that the
industrialists' facilities in Arcadia made substantial

profits during the war. Yet this cannot be the motive
since, as the Distopians foresaw, Distopia's federal
expenses for the intervention were eight billion
dollars, whereas, during the war, profits from the
Distopian industrialists’ facilities in Arcadia totaled
only four billion dollars.

Which of the following, if true, exposes a serious
flaw in the argument made in the second sentence
above?

(A) During the Arcadian war, many Distopian
industrialists with facilities located in Arcadia
experienced a significant rise in productivity
in their facilities located in Distopia
(B) The largest proportion of Distopia's federal
expenses is borne by those who receive no
significant industrial profits.
(C) Most Distopian industrialists' facilities located
in Arcadia are expected to maintain the level
of profits they achieved during the war.
(D) Distopian industrialists' facilities in Arcadia
made substantial profits before the events
that triggered the civil war.
(E) Many Distopians expressed concern over the
suffering that Arcadians underwent during
the civil war.
这个选B 没看懂B的意思也没看懂逻辑意思。。。

请问大家在看不懂题目的意思的情况下应该怎么解题呀。。。

cherrydew · 发表于 2010-8-24 22:50:46

再请教一下为什么每次发帖显示出来的内容都有两遍。。。。

cherrydew · 发表于 2010-8-25 12:45:52

本贴相关题目 GMATPrep-2007E1-CR-48 (EAXP)

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两道逻辑题请教逻辑分析方法

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