来源:《数理天地(初中版)》2017年第07期  作者:周越;
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动物世界之哺乳动物(英文)

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Have you ever gone to a circus or to the zoo?Did you notice that an elephant has four large,strong legs to hold him up and help him walk?The elephant is the largest of all land animals.A full-grown African elephant often weighs more than 10,000pounds(4,600kg).In spite of his size,an elephant can run as well as walk.Elephants are mammals.Mammals are on class of five classes of animals called(本文共计2页)......[继续阅读本文]

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