单项选择题
A gold-rated building is estimated to have reduced its environmental impact by 50% compared with a(an)（）conventional building.
A．equivalent B．alike C．uniform D．likely
单项选择题 After a through research, the police（）most of the missing jewels.
单项选择题 Some of the world's best mountain（）is available within the 500-kilometer long chain of the Southern Alps.
单项选择题 A(An)（）is better than the text and may make the point clear.
