79.通常用來做antiseptic用途的H2O2濃度約為多少?
(A)30%
(B)10%
(C)3%
(D)0.3%
答案:登入後查看
統計: A(218), B(187), C(791), D(68), E(0) #1033134
統計: A(218), B(187), C(791), D(68), E(0) #1033134