Article introduced the definitions, characteristics and functions of the third-party logistics and fourth-party logistics at first, based on which it analysed them comparatively and analysed their interaction cooperation analysis,and proposed several kinds of operation models of the two finally.

The net-course includes four parts,they are content structure,interface,navigation and communion environment.

In this paper,one IDS model with multiAgent mutual collaboration and without control center and its advantages are put forward on the base of analysis of network security requirement and distributing intrusion detection technique,which realizes the idea of distributing intrusion detection.

The Human-Computer Interactive Teaching Mode constructed in Tongji University,supported by the theories like "comprehensible input","zone of proximal development" and "constructivism",sets modular graded teaching and learning as a premise and employs multi-media and the Internet as a teaching aid,featuring "self-access" and "high involvement".

The manifestation included: conflict interaction;harmony interaction;interfusion interaction;conformity interaction.