4. The graysquirrel, introduced into local woodlands ten years ago, threatens theindigenous population of an endangered owl species, because the squirrels’habitual stripping of tree bark destroys the trees in which the owls nest. Somelocal officials have advocated setting out poison for the gray squirrels. Theofficials argue that this measure, while eliminating the squirrels, would poseno threat to the owl population, since the poison would be placed in containersaccessible only to squirrels and other rodents.
Which one of thefollowing, if true, most calls into question the officials’ argument?
(A) One of thespecies whose members are likely to eat the poison is the red squirrel, aspecies on which owls do not prey.
(B) The owls whosenesting sites are currently being destroyed by the gray squirrels feedprimarily on rodents.
(C) No indigenouspopulation of any other bind species apart from the endangered owls isthreatened by the gray squirrels.
(D) The owls thattare threatened build their nests in the tops of trees, but the gray squirrelsstrip away back from the trunks.
(E) The officials’plan entails adding the poison to food sources that are usually eaten byrodents but not by other animals.
狒狒详解上面说C，可是我觉得B也可以啊，原文说的是星座，但是地域差异还有文化差异都跟星座木有关系啊，牛人们讲解下谢谢啊！！！作者: legnawen 时间: 2011-4-11 06:48
