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
我选A,答案是B. 我觉得B的were不对,metabolism是单数的。请教!
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