阿摩線上測驗
27. Strainers should be provided with what indicators to provide warning of the necessity for
cleaning the strainers？
(A) pressure-drop
(B) temperature-drop
(C) reverse-flow
(D) overflow
答案：登入後查看
統計： A(447), B(99), C(96), D(119), E(0) #1767637
統計： A(447), B(99), C(96), D(119), E(0) #1767637
