单项选择题
A.50%来苏尔40ml加水980mlB.50%来苏尔40ml加水960mlC.40%来苏尔50ml加水980mlD.40%来苏尔50ml加水960ml
A.20minB.60minC.80minD.100min
A.过氧化氢B.次氯酸钠C.漂白粉D.新洁灭尔