What do we learn about the international scientists' research? A.They kept detailed records of all the elephants. B.They compared zoo-born elephants with wild ones. C.They explain clearly why wild elephants are healthier. D.They focus on female elephants captured in the wilD.
A.They B. B.They C. C.They D. D.They E.
【参考答案】
B 解析:根据题干中的international scientists将本题出处定位到第3段首句。该句提到,……......