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These amazing animals prove that love lives on four legs.

A little girl's lifeline

Three-year-old Alida Knobloch and her 27kg golden dog, Mr. Gibbs, are almost together all the time. There is a special love between them. Alida, who suffered from serious lung (肺)disease when she was 10 months old, is unable to breathe on her own for about 45 minutes. So Mr. Gibbs has been with her everywhere, carrying 4.5kg of oxygen tanks for her. A pig that calms kids

   When Lois Brady, a famous doctor in America, visits special-needs students in San Francisco schools, she often brings along Buttercup, a black pig from Vietnam. The pig is very calm and friendly and has been trained to offer comfort to patients as well.

A Lion's big heart

   With paws the size of dinner plates, bright black eyes and a golden mane (鬃), Jupiter, a 13-year-old 250kg lion, was brought to the rescue (援救) center by Anna. In the past two years, Anna has developed a very close relationship with Jupiter.

据调查，我国铁、锰黑色金属矿产回收率为65%，国有有色金属矿产和采矿回收率为50%，国有煤矿的回收率为50%。单位国民生产总值所消耗钢材、铜、铅、锌分别是世界平均水平的3.6倍、3.7倍、2.4倍、2.7倍、2.2倍。这表明我国（   ）

材料一  主要工业国家在世界工业中的比重（%）

 材料二  1913年英、德、美、法的实力对比表

材料三  一位历史学家在谈到20世纪初欧洲形势时说：“欧洲变成一只‘火药桶’，只等一粒火星将它引爆。”

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