ChaseDream
搜索
返回列表 发新帖
00:00:00

Which of the following most logically completes the argument?
A certain cultivated herb is one of a group of closely related plants that thrive in soil with high concentrations of metals that are toxic to most other plants. Agronomists studying the herb have discovered that it produces large amounts of histidine, an amino acid that, in test-tube solutions, renders these metals chemically inert. Possibly, therefore, the herb's high histidine production is what allows it to grow in metal-rich soils, a hypothesis that would gain support if ______.

正确答案: E

相关帖子

更多...

更多相关帖子

524

帖子

15

好友

4712

积分

ChaseDream

注册时间
2003-03-17
精华
8
解析
查看: 1260|回复: 2
打印 上一主题 下一主题

cr jj 答案 讨论

[复制链接]
楼主
发表于 2007-8-11 04:04:00 | 只看该作者

cr jj 答案 讨论

  GWD的变体,A certain cultivated herb is one of a group of closely related plants that thrive in soil with high concentrations of metals that are toxic to most other plants.  Agronomists studying the herb have discovered that it produces large amounts of histidine, an amino acid that, in test-tube solutions, renders these metals chemically inert.  Possibly, therefore, the herb’s high histidine production is what allows it to grow in metal-rich soils

原题问support,现在问evaluate这个结论,给了5whether,我看了下原题,基本上就是原来的选项加上个whether

GWD 选项
            

a hypothesis that would gain support if ______.   

A: histidine is found in all parts of the plant – roots, stem, leaves, and flowers

B: the herb’s high level of histidine production is found to be associated with an unusually low level of production of other amino acids

C: others of the closely related group of plants are also found to produce histidine in large quantities

D: cultivation of the herb in soil with high concentrations of the metals will, over an extended period, make the soil suitable for plants to which the metals are toxic

E: the concentration of histidine in the growing herb declines as the plant approaches maturity

C

可是 D 似乎也有道理。 C 并不能说明这种acid起到什么作用,好比说蕨类植物的叶子都有什么细胞一样,很普通的共性而已。D的话似乎更加好。大家看法如何?

可是 D 似乎也有道理。 C 并不能说明这种acid起到什么作用,好比说蕨类植物的叶子都有什么细胞一样,很普通的共性而已。D的话似乎更加好。大家看法如何?

沙发
发表于 2007-8-11 16:47:00 | 只看该作者

这题肯定是C

板凳
发表于 2007-8-11 17:07:00 | 只看该作者
others of the closely related group of plants 这几个关键词说明了C的正确性.

        
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, 2024-11-23 00:45
京公网安备11010202008513号 京ICP证101109号 京ICP备12012021号

ChaseDream 论坛

© 2003-2023 ChaseDream.com. All Rights Reserved.

返回顶部