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Where did you buy the math class notes in the first volume of the third grade?
JD。 COM, Dangdang.

1,JD。 COM: You can find a lot of goods in the category of goods in JD.COM. You can search and buy them according to your own needs.

2. Dangdang: Dangdang is also an e-commerce platform for selling books. You can search for third-grade math classroom notes in its book classification to buy.