以下是引用而今迈步从头越在2005-3-23 20:19:00的发言：27. According to the passage, when biologists believed that the cells in the early embryo were undetermined, they made which of the following mistakes?
(A) They did not attempt to replicate [ring10] the original experiment of separating an embryo into two parts.
(B) They did not realize that there was a connection between the issue of cell determination and the outcome of the separation experiment.
(C) They assumed that the results of experiments on embryos did not depend on the particular animal species used for such experiments.
(D) They assumed that it was crucial to perform the separation experiment at an early stage in the embryo’s life.
(E) They assumed that different ways of separating an embryo into two parts would be equivalent as far as the fate of the two parts was concerned. 同意答案是E。但好像也挑不出B的不对呢？因为即然这些科学家认为这些细胞都是undetermined，那么他们自然也就不会意识到在cell determination 和separation experiment有联系了。请指教！ 个人意见！我觉得这道题B的connection过于含糊，什末样的connection呢？可以理解为他们意识到了，只不过他们的想法是错误的而已：他们认为outcome和cell determination没有关系！原文：This led them to believe that the cells in the early embryo are undetermined in the sense that each cell has the potential to develop in a variety of different ways. 我觉得这样也是一种connection，就好像错误的认识也是一种认识一样的！如果选项改为说They realized that there was no connection between the issue of cell determination and the outcome of the separation experiment. 我觉得B就对了！ 关键在于否定的对象！是不是有点强词夺理？！ 
同意,如果"他们没有意识到"并不是一种错误,如果是wrongly assumed,则是一种错误,是这意思吧~~~  | 
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发表于 2005-6-25 09:44:00
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