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标题: PREP07 48. (34221-!-item-!-188;#058&007550)求教 [打印本页]

作者: ssxxtt27 时间: 2011-8-29 23:02
标题: PREP07 48. (34221-!-item-!-188;#058&007550)求教

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.

(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.

答案A 我选的是C argument讲的wasps 如何lay eggs的事 laid 太多会造成恶性竞争太少也不行。。。我就在AC间纠结了。。。这是讲behavior啊还是experience呢。。。A说了size由behavior决定。。。感觉题目没说size的事啊，只是讲了laid eggs数量多少的问题

求指教！

作者: jxttsweet 时间: 2011-8-29 23:51
我感觉是说egg多或者egg少就在说自己生存的size的大小

作者: joyzhang1990 时间: 2012-12-7 09:39
文中没有说learn from experience,所以选项C中出现文中没有的信息，肯定推不出来~

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