阿摩線上測驗
19. The strainers should be installed with ______________ that provide the pre-warning of the
necessity for cleaning the strainer.
(A) thermometers
(B) level indicators
(C) pressure drop indicators
(D) flow meters
答案：登入後查看
統計： A(184), B(187), C(713), D(142), E(0) #2333277
統計： A(184), B(187), C(713), D(142), E(0) #2333277
