Bussiness and Economics Goods and services supply what people need or want. Goods are t...

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Bussiness and Economics Goods and services supply what people need or want. Goods are t...
A Trip to Yosemite Park 1 Today Christina and her friend are enjoying themselves. This ...
Leonardo da Vinci 1 Leonardo da Vinci is one of the greatest geniuses (天才) of all time....