简介:(3)上网时间长短不同采用不同的资费水平策略,制定Internet业务资费应该考虑Internet业务的需求价格弹性、需求收入弹性,Internet业务资费的需求价格弹性较大
简介:machine to machine as well. A reasonable evidence is from the study of the Computer Supported Cooperative Work. What should an HCI Machine System actually do,Tom and his partners devoted their early years of work in the theoretical foundations of HCI and published a culminating paper ------ The Psychology of HCI,Tom’s additional research on a variety of realms of HCI also reached a culminate standard in the specific area