ChaseDream
搜索
返回列表 发新帖
查看: 1415|回复: 2
打印 上一主题 下一主题

一道迷惑题

[复制链接]
楼主
发表于 2005-7-31 22:36:00 | 只看该作者

一道迷惑题

Conservationist: The population of a certain wildflower is so small that the species is headed for extinction. However, this wildflower can cross-pollinate with a closely related domesticated daisy, producing viable seeds. Such cross-pollination could result in a significant population of wildflower-daisy hybrids. The daisy should therefore be introduced into the wildflower’s range, since although the hybrid would differ markedly from the wildflower, hybridization is the only means of preventing total loss of the wildflower in its range.


. Which one of the following is an assumption on which the conservationist’s reasoning depends?


(A) The wildflower currently reproduces only by forming seeds.


(B) The domesticated daisy was bred from wild plants that once grew in the wildflower’s range.


(C) Increasing the population of the wildflower will also expand its range.


(D) Wildflower-daisy hybrids will be able to reproduce.


(E) The domesticated daisy will cross-pollinate with any daisy like plant.


答案说是D,我觉得是C,请大家帮看看

沙发
发表于 2005-8-1 18:56:00 | 只看该作者
c的错误: preventing total loss of the wildflower in its range和increasing the population of the wildflower will also expand its range不相关。一个是prevent loss of the flower,一个是expand the range of the flower
板凳
发表于 2005-8-1 19:13:00 | 只看该作者
您需要登录后才可以回帖 登录 | 立即注册

Mark一下! 看一下! 顶楼主! 感谢分享! 快速回复:

手机版|ChaseDream|GMT+8, 2025-9-26 19:34
京公网安备11010202008513号 京ICP证101109号 京ICP备12012021号

ChaseDream 论坛

© 2003-2025 ChaseDream.com. All Rights Reserved.

返回顶部