Therefore, there is no exactly standard defination of service even more obscured by people's subjective assessment.
因此，服务没有一种衡定的标准，人为的主观参与判断也更模糊了服务的标准。
2
The article puts forward its views on the reasons for establishment, defination, design theory and principles, types and teaching tactics of biological activity course.
This paper introduces the defination of multiplicity automata and analyzes the relationship of multiplicity automata and deterministic automata or non_deterministic automata.