69. Effective concentration of disinfectant for equipment disinfection, which of the
following is correct？
(A) 0.1% benzethonium chloride solution
(B) 95% alcohol
(C) chlorine solution with 0.02% residual chlorine
(D)3% saponated cresol solution
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使用消毒液消毒器材之有效消毒濃度，下列何...
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