求助GWD里面一道题

xuhui1993

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  
• C   that the metabolisms of many species of dinosaurs were more like those of  
• D   there were many species of dinosaurs that had metabolisms more like those of  
• E   there were many dinosaur species that had a metabolism more like that of  
  

正确答案选A，求大神帮忙解惑啊啊啊！！

ayoyoyo

A 正确
B ...metabolism...were...，单复数错误
C ...those of a warm-blooded mammal's，双重所有格，of+one's用一个就可以
D 同C
E 同C