Câu hỏi :

The word “it in paragraph 2 refers to ______.

A. coordination

B. jaw

C. joint

D. coelacanth

* Đáp án

D

* Hướng dẫn giải

Dẫn chứng: The prehistoric coelacanth studied by palaeontologists had distinctive characteristics that differentiated it from other fish. It was named for its hollow spine and was known to have been powerful carnivores because of its many sharp teeth and a special joint in the skull that allowed the ferocious teeth to move in coordination with the lower jaw. It also had a pair of fins with unusual bony ...

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