50cmHg 真空度之壓力相當於(A) 0.353kg/cm2 -abs (B) 0.353kg/cm2-G (C) 0.68kg/cm2-abs (D)0.68kg/cm2-G。

問題詳情

50.50cmHg 真空度之壓力相當於
(A) 0.353kg/cm2 -abs
(B) 0.353kg/cm2 -G
(C) 0.68kg/cm2 -abs
(D)0.68kg/cm2 -G。

參考答案

答案：A
難度：適中0.5
統計：A(0),B(0),C(0),D(0),E(0)

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