From the explanations of ETS, E might be the right answer. But I think
that D is right too or is even better than E. In the first
paragraphy, the author mentioned that "All of the cells in a particular
plant start out with the same complement of genes, how can
they............". Fom my point of view, it is the oligoshchair that
differentiates the structures of roots, leaves........... . So D cannot
be evaluated as a wrong answer.
Informative explanations will be highly appreciated.作者: himba 时间: 2004-11-24 07:59
这里ETS解释的第6句明确说了D的错误。即O这个东东不能产生任何的荷尔蒙。所以选项错了。
作者: ppp1 时间: 2004-11-25 21:22
以下是引用himba在2004-11-24 7:59:00的发言：
这里ETS解释的第6句明确说了D的错误。即O这个东东不能产生任何的荷尔蒙。所以选项错了。
谢谢himba
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