問題詳情
1 . (20%) In a two-dimensional, planar flow of an incompressible fluid，the x-component of velocity is given by u = x2 + x - 2y Can you find an expression for v?
參考答案
答案：D
難度：適中0.625
統計：A(2),B(10),C(13),D(50),E(0)
用户評論
【May Wang】評論
選號應該為A為必需脂肪酸的來源B增加食物的可口性C促進胡蘿蔔素的吸收D重要的能量來源，尤其對腦細