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Teratomas are unusual forms of cancer because they are composed of tissues such as tooth and bone not normally found in the organ in which the tumor appears.
(A) because they are composed of tissues such as tooth and bone
(B) because they are composed of tissues like tooth and bone that are
(C) because they are composed of tissues, like tooth and bone, tissues
(D) in that their composition, tissues such as tooth and bone, is
(E) in that they are composed of tissues such as tooth and bone, tissues
看过先前的讨论和OG的解释也知道了in that 和 because的区别，以及加不加tissue的区别。可是有个问题还是很困惑：为什么不加tissue会导致逻辑错误？不加tissue的意思成了tooth and bone not normally found in the organ
加了tissue成了tissue not normally found in the organ。可是tissues和tooth and bone本来就有着tissues such as tooth and bone的关系，为什么就不能tooth and bone not normally found in the organ 呢？各位NN你们是怎么判断这个逻辑的啊？可能是我的脑子短路了！
谢谢
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发表于 2005-6-6 22:24:00
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