1. Objective To excogitate a method for extracting DNA from Bulbus Lilii to be appropriate for RAPD analysis.

2. Objective To excogitate Alisma orientate(Sam. ) Juzep. flower bolt Cultivating and standardization cultivating technology of field planting management.

3. Methods Analyze the hiding mechanism of new Trojan proceeding from the principle of SPI technique and excogitate a method to check and clean this type of Trojan accordingly.

4. The scientist must stop to observe and start to excogitate.

5. On the other hand, the rapid development of electronics and communication technology have provided the chance to excogitate the intelligent houses.

6. This paper finds the method to solve the problem for using ET2000 system for teaching and providing reference for the soft excogitate people.