题目

 “People should have one meat-free day a week if they want to make a personal and effective sacrifice(牺牲) that would help deal with climate change,” the world’s leading authority on global warming has told The Observer. Dr Rajendra Pachauri, chair of the United Nations Intergovernmental Panel on Climate Change, said that people should then go on to reduce their meat consumption even further. Pachauri, who was re-elected the panel’s chairman for a second six-year term last week, said diet change was important because of the huge greenhouse gas emissions (排放) and other env俄国1861年改革与美国南北战争所要解决的国家共同问题是 ①解放劳动力  ②扩大国内市场  ③扩张领土  ④积累资金 [    ] A.①②　　　　　　　　　　　　　　　　　　　　　　　　　　　　  B.①③ C.②③　　　　　　　　　　　　　　　　　　　　　　　　　　　　  D.②④