On Tap Unit 9, 10, 11 Anh 12
... In 19 89, a ban was given on all international trade in ivory A action B contamination C destruction D prohibition * * * * * 36 People have hunted animals food, hides, and ivory A on B for ... difficulty C difficultly D difficulties 40 _ is the protection of environment and natural resources A Survival B Commerce C Conservation D Extinction * * * * * 41 Chemical wastes from factories are...
Ngày tải lên: 27/04/2015, 22:00