[求助]gwd-19-28又是矮子里面挑高子？

求助NN们，我觉得这两个答案都可以，好像没有谁优于另一个。

Q28：Some scientists contend that many species of dinosaur had a metabolism more like a warm-blooded mammal's than a cold-blooded reptile's.

A.that many species of dinosaur had a metabolism more like

B.that the metabolism of many dinosaur species were more like

(其他选项均有较明显的漏洞，就不列出了)

答案为A。

可是我觉得B更好，因为我认为that从句主要是介绍这个metabolism,那么句子的中心词（即主语）就应该是metabolism。不过B是不是因为metabolism的谓语是were所以不对？

另外many species of dinosaur had a metabolism也有点怪呀。

这样子...