单项选择题A．Federal government.B．The horse-lovers.C．The people who kill the wild horse.D．The native peopl

单项选择题A．2 yearsB．10yearsC．20 yearsD．5 years

单项选择题A．Doing a bit of acting and photography.B．Going to concerts frequently.C．Playing traditional jazz and folk music.D．Traveling in Europe by hitch-hikin

单项选择题A．Climate change and human activities.B．The hunting and culling.C．Fanning and industrializing.D．Mass killing caused by peopl

单项选择题A．150 million.B．1.50 million.C．15 million.D．50 million.