THE U.S. SENATE DEPARTMENT WARMS THAT UNLESS SIGNIFICANT STEPS AR...

481. - De thi trac nghiem TOEIC tong hop
De thi trac nghiem TOEIC tong hop
481. The U.S. Senate Department warms that unless significant steps are done soon, greenhouse gasAconcentrations will very likely t r i p l e in a hundred y ear s , re a c h i ng levels higher than at any time in the last50 million years.B C D