Unit 1 Reading A The Human complex— A Never –failing Source of Wonderment (人类的复杂性——一个永远不会失去惊叹的话题) “ In my view, ” wrote Thomas Jefferson in 1814 , “no knowledge can be more satisfactory to a man that of his own frame, its parts, their functions and...

时间:2024-12-24 09:39栏目:行业资料