关于北极熊的介绍（用英语）（大约40字）

Question

用初中英语

Answer 1

北极熊是世界上最大的陆地食肉动物，又名白熊。按动物学分类属哺乳纲，熊科。雄性北极熊身长大约240-260cm，体重一般为400-800公斤。北极熊的视力和听力与人类相当，但它们的嗅觉极为灵敏，是犬类的7倍,时速可达60公里,是世界百米冠军的1.5倍。 The polar bear is the world's largest land predators, also known as the arctic. According to the classification of zoology BuRuGang, XiongKe. Male polar bears length about 240-260cm, weight is commonly 400-800 kilograms. The polar bear's vision and hearing and human subjects, but their sense of smell is dogs sniff, seven times, speeds up to 60 kilometers, is the world 100 meters champion of 1.5 times.