题目

下列叙述正确的是（    ） A．碱性锌锰干电池的负极材料为二氧化锰 B．碱性氢氧燃料电池工作时负极反应为：H2-2e-+2OH-=2H2O C．铅蓄电池放电时负极反应为：PbO2+2e-+4H+=Pb2+++2H2O D．锌一铜一稀硫酸构成的原电池工作时，H+向负极移动 答案：BA Cardinal numbersA1.lock wonts to have a party at his house. Help him write down the phone numbers on the quest list below.Ben's number is five,five,eight,seven,nine,oh, oh.Wang Us number is five,five,one,seven,three,nine,three.Li Xus number is five,five,one,two,eight three,oh.Sarah's number is five,five,one,five,seven,one,six.Wang iWs phone number is fiVefiVe,four; seven,one,one,eight. Laura's number is five,five,eight,oh, two,three,oh.Lulus number is five,five,seven,three,six,one,four.Tang Lin's phone number is five,five,one,eight,seven,nine,four. Susan's number is five,five,four; one,nine,nine,one.Charles's number is five,fivey one,eight,oh, three,two.1 Ben: 6 Laura:  2 Wang U:  7 Lulu: 3 Li Xu: 8 Tang Lin: 4 Sarah:    9 Susan: 5 Wang Tao: I  10 Charlee: