問題詳情

31.Usually, “gauge pressure” means .
(A)vacuum
(B)the excess of pressure above atmosphere
(C)absolute pressure
(D)mean effective pressure

參考答案

答案:B
難度:簡單0.727273
統計:A(0),B(16),C(3),D(2),E(0)

內容推薦

內容推薦