可汗学院
香港
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可汗学院

一款可谓是声名远扬的自学网站平台。Learn for free about math, art, computer programming, economics, physics, chemistry, biology, medicine, finance, history, and more. Kh……

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一款可谓是声名远扬的自学网站平台。Learn for free about math, art, computer programming, economics, physics, chemistry, biology, medicine, finance, history, and more. Khan Academy is a nonprofit with the mission of providing a free, world-class education for anyone, anywhere.

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