武汉微博教育整理分享计算机英语第三版课后答案（五）练习答案e-BusinessSection AIFill in the blanks with the information given in the text:1 commercial; network2 catalogs; engines3 currencies; checks4 relationship-based; purses5 Signatures6 cash; token7 Public8 SymmetricIITranslate the following terms or phrases from English into Chinese and vice versa:1 user authentication 用户认证2 electronic purse 电子钱包3 information filter 信息过滤4 data integrity 数据完整性5 smart card 智能卡
