Some scientists contend that many species of dinosaur had a metabolism more like a warm-blooded mammal's than a cold-blooded reptile's.


that many species of dinosaur had a metabolism more like

that the metabolism of many dinosaur species were more like

that the metabolisms of many species of dinosaurs were more like those of

there were many species of dinosaurs that had metabolisms more like those of

there were many dinosaur species that had a metabolism more like that of

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题目分析：
略。

选项分析：

A选项：Correct. 本选项在语法和逻辑上均是正确的。

B选项：本选项主语是新陈代谢(metabolism)，其是一个单数名词，身后的谓语动词也需要用单数来表达，were应该改为was。

C选项：比较对象不对等。真正应该比较的是“恐龙的新陈代谢”和“温血动物的新陈代谢以及冷血动物的新陈代谢”，而在划线部分身后已经给出了a warm-blooded mammal's（在温血动物和冷血动物的身后加上了所有格），即，已经表示“动物的新陈代谢”了，不必要再加those of。

D选项：比较对象错误同(C)。另外，本选项是一个there be句型。There be句型通常描述的是“这里有xxx”，例如：
there are three chairs.
该例句讲的是：这里有三把椅子。
用之于本题，本句的意思是：这里有很多种类的恐龙。这在逻辑上是不正确的，科学家声称的应该是很多种类的恐龙具有的某种特点，而不是“有很多恐龙”。

E选项：本选项错误同(D)。

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