31. Oil clearance means oil _______ from the surface of the water.
(A) resistant
(B) contamination
(C) skimming
(D) mixture
答案:登入後查看
統計: A(93), B(122), C(390), D(111), E(0) #3155837
統計: A(93), B(122), C(390), D(111), E(0) #3155837
詳解 (共 2 筆)
#6025265
18
0