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.

单项选择题A．higher than 1995 to 2000B．lower than 1973 to 1995C．as good as 1995 to 2000D．the same as 1993 to 1995

单项选择题A．Art.B．French.C．German.D．Chemistry.