According to the passage, what is true about the size of dinosaurs? A.It made them the largest creatures ever on earth. B.It varied quite greatly. C.It guaranteed their survival. D.It was rather uniform.
Theo đoạn văn, điều gì là đúng về kích thước của khủng long?
A. Nó làm cho chúng trở thành những sinh vật lớn nhất trên trái đất.
B. Rất đa dạng
C. Nó đảm bảo sự sống còn của chúng.
D. Nó khá đồng nhất.
Dẫn chứng: The biggest ones weighed more than ten times as much as a mature elephant and nearly equaled the size of most modern day whales. The famous kinds of dinosaurs, including the brontosaur and tyrannosaurus, reached 80 to 90 feet in length. Not all dinosaurs were giants, however, some were actually no larger than a chicken.