题型:判断题 用惰性电极电解CuCl2和CuSO4混合溶液(浓度均为0.01摩/升)500毫升,当阴极析出0.48克Cu时,在标准状况下,阳极可得到的气体约为 A.0.168升B.0.14升C.0.336升D.0.24升 查看答案
题型:判断题 All the following tools and techniques are helpful to accurately confirming customers'needs,except()A.questionnairesB.prototyping approachesC.fishbone diagramsD.interviews 查看答案