問題詳情

29.The oil is drawn from a drain tank through , one of a pair of pumps, into one of fine filters.
(A)a strain tank
(B)a head tank
(C)a service tank
(D) a strainer

參考答案

答案：D
難度：適中0.538462
統計：A(3),B(1),C(6),D(14),E(0)