THE TWENTIETH CENTURY HAS BROUGHT MANY DANGERS TO WHALES DUE TO .....

27. - TÀI LIỆU UNIT 9 UNDERSEA WORLD
TÀI LIỆU UNIT 9 UNDERSEA WORLD

27. The twentieth century has brought many dangers to whales due to ...

A. longer nets

B. improved methods of technology & faster ships

C. improved methods of technology

D. faster ships