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TF阅读真题第797篇The Australlan Megatauna Extinctions
The Australlan Megatauna Extinctions Many of the species of large animals(megafauna) such as mammoths, mastodons, ground sloths, and giant deer that roamed the Earth tens of thous...
TF阅读真题第821篇Using Animal Bones to Determine Climates
TF阅读真题第821篇Using Animal Bones to Determine Climates