题目

International Radio-What's on tonight?18: 00World News ProgrammeThe latest news from around the world.20: 00Play for TodayToday's play is about a young Chinese boy faced with the choice between following his heart—becoming a pop star and following his parents, who are both doctors.18: 10What Do You Think?Phone in with your opinion about today's hot topics: Why is the world getting fatter? How can we look after our world better to save the planet? Should we all get free healthcare or should we pay ourselves?21: 00Problem—What Problem?Phone in to ask for Aunt Vera's advice if you have a prob一种新型燃料电池,它以多孔镍板为电极插入KOH溶液中,然后分别向两极上通乙烷(C2H6)和氧气,其电极反应式为:C2H6+18OH--14e-=2CO32-+12H2O,2H2O+O2+4e-=4OH-,有关此电池的推断不正确的是(  )A.正极发生还原反应B.正极与负极上参加反应的气体的物质的量之比为2:9C.通乙烷的电极为负极D.电池工作过程中,溶液的pH值逐渐减小
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