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摘要： 21 Survival of Desert Life 沙漠生命的延续 ① Some desert animals can survive the very strong summer heat and dryness because they have very unusual characteristics.The camel,for example,can hear an increase ... 阅读全文

摘要： 20. Dog,Man's Best Friend 狗,人类最好的朋友①The dogs has always been considered man's best friend.Always noted for being particularly faithful in watching over children,he also has his place by the fireside,... 阅读全文

摘要： 19. Fight over Fox-hunting 猎狐引发的冲突 ① Foxes and farmers have never got on well.These small dog-like animals have long been accused of killing farm animals.They are officially classified as harmful and... 阅读全文