問題詳情
21. When liquid is free to move transversely in a tank, the effect is called .
(A) Free communication
(B) Free density
(C) Free surface
(D) Negative GM
(A) Free communication
(B) Free density
(C) Free surface
(D) Negative GM
參考答案
答案:C
難度:簡單0.745455
統計:A(5),B(1),C(41),D(6),E(0)
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