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1.固力學及熱力學;2.流體力學;3.金屬材料題庫下載題庫

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22、 In Figure 22, the gate is 3 m wide and weightless. To keep this rectangular gate to be in equilibrium, the depth of water will be :  
(A)3.2 m,
(B)2.67m,
(C)4.5 m,
(D)5.2 m.


22、 In Figure 22, the gate is 3 m wide a..-阿摩線上測驗