请教2题JJ,在逻辑扳发了一遍没有回应,因为快要考试了比较着急所以在这里再问一遍,版主不要见怪 
1.都市发展影响鸟的数量
some kind of bird,他经常nest的地方被economic development破坏,所以数量开始下降。但是经过了1~2年后,数量有赠家了,问原因
A.after the damage to local ecosystem, the ecosystem can soon restore significantly
C this bird can nest on road signs and ### that have been built these years
E the development damages the living place of another animal, forcing them out in open. And this animal is the food of the bird
很多前人说选AorE,但我怎么觉得选C啊。请指教
2.某地老人免疫力差,但发现死于心脏病的比死于cancer的多,而前者和免疫无关后者和免疫有关,问解释。治疗心脏病的药有负作用??免疫力不好的老人recover了??糊涂了,咋没看出来这辆个选项哪个有解释作用呢???请教
   
[此贴子已经被作者于2004-11-18 15:21:04编辑过] |