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1. How to play the fourth level of Colombia Mission in Delta Force 6? 2, Ask Delta Force 6 Saber Force 3, Clearance a...
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[Part One: A Thing in Winter Vacation]Happy winter vacation has been nearly half a year, but one thing in the winter vac...
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It was the French Montgeffe brothers who released Europe's first balloon filled with hot air into the air in 1783. The F...
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Balloon, balloon steam is another word, used less. A balloon is a sealed bag filled with air or some other gas. Balloons...
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Balloon, balloon steam is another word, used less. A balloon is a sealed bag filled with air or some other gas.Balloons...
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Buoyancy F=pgV=1.29*9.8*1500 Quality of goods =F\/g-m=1.29*1500kg-1500kg=0.29*1500kg=435kg...
