Rising life expectancy and worries about the valueof pensions mean the trend to work will continue.
人们对生活的期望越来超高，愈加担心养老金的价值，因而工作趋势将持续。
2
Expectancy-Value Theory and Attribution Theory also form the theoretical basis of the motivational variables which can be used in interpreting the complicated motivational activities of individuals.
期望-价值理论，以及归因理论都为揭示个体的复杂动机行为提供了理论支持。
3
This paper introduces several methods for improving the life expectancyof mine hoisting cable, which have the practical reference value for the safety in production of coal mine.