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Chinese junks were some of the most technologically advanced ships of their time. These multiple-deck ships could carry up to Choose... people at a time. They also used Choose... to keep from sinking. These innovations enabled junks to contribute greatly...

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Solve the differential equation dy/dx+ytanx=y^2secx

This statement means in some cases, supplements are needed to increase health and activity for athletes. ... This statement particularly refers to the athletes who are not in very good health, where supplements would help them.This statement means in some...