电子商务技术支持的四个层次分别是:①报文和信息传播层,②贸易服务层,③网络层,④多媒 发布时间:2018-01-15 19:15 │ 来源:www.tikuol.com 题型:单项选择题 问题: 电子商务技术支持的四个层次分别是:①报文和信息传播层,②贸易服务层,③网络层,④多媒体信息发布层,层次顺序自底向上是( )。A.④③②①B.①②③④ C.②①④③D.③④①②
题型:单项选择题 In relation to employment law:(a) Explain FOUR ways by which a contract of service may be terminated under the Employment Act 1955. (6 marks) 查看答案