問題詳情
16. Lubricant oil filters remove contaminants more efficiently if the oil-bearing filtered is .
(A) under high pressure
(B) under low pressure
(C) heated to reduce viscosity
(D) cooledto increase viscosity
參考答案
答案：C
難度：適中0.681818
統計：A(6),B(1),C(15),D(0),E(0)