GWD1 Q12旧题新解

mashengyi · 发表于 2012-3-3 18:17:50

GWD1-Q12:GWD1-Q12:The author mentions the“aftermath of the Mount Saint Helens eruption”(lines 73-74) most likely in order to
C

A. provide an example of the process that allows therepopulation of rivers whose indigenous salmon population has become extinct
B. indicate the extent to which the disturbance of salmonhabitat by human activity in one stream might affect the genetic structure ofsalmon populations elsewhere
C. provide a standard of comparison against which the impactof human activity on the gene flow among salmon populations should be measured
D. show how salmons’ homing instinct can be impaired as aresult of severe environmental degradation of their natal streams
E. show why straying rates in salmon populations remaingenerally low except when spawning streams suffer severe environmentaldisturbance
答案徘徊在BC之间

Although no one has quantified changes in the rate of straying as a result of the disturbances caused by humans, there is no reason to suspect that the effect would be qualitatively different than what was seen in the aftermath of the Mount Saint Helens eruption
.我的定位点是这一句话，这一句说的意思是虽然还没有一个因人类破坏而导致数量变化的现实出现，但是没有理由去怀疑和火山喷发引起数量上有差异（意思就是说作者觉得和火山喷发造成的影响相似）所以选择B 请大家帮忙鉴定一下

GWD1 Q12旧题新解

所属分类: GMAT考试

正在浏览此版块的会员 ()

浏览过的版块