39 在測定鯨蠟醇(cetyl alcohol)之羥基值(hydroxyl value)時,需加入甲苯(toluene),其作用為何?
(A) Catalytic agent
(B) Condensing agent
(C) Mutual solvent
(D) Reducing agent
答案:登入後查看
統計: A(40), B(56), C(85), D(23), E(0) #438457
統計: A(40), B(56), C(85), D(23), E(0) #438457