今天，家庭的主要经济活动是消费性的，尽管家庭中有些成员在社会上所干的可能是生产性的。
Today the main economic activities of the family are in the nature of consumption-however productive may be what some of its members do in society.
运用最优控制理论研究生产性企业组织学习活动的动态最优决策问题。
This paper attempted to apply the optimal control theory to dynamic optimal solutions of organizational learning in manufacturing firms.
摘要：体育概念的属性是人的肢体活动，其种差是强化体能和非生产性。
Absrtact: the concept attribute of sport is activity of human limbs and trunk, and the specific difference of sport is to strengthen physical power and it is not for production.
人力资源是指能够作为生产性要素投入到社会经济活动中创造财富的劳动力， 是人的体力和脑力的总和。
Abstr act: Enterprise. s human resources, i. e. the talented persons is the main body in knowledge economy.
体育的定义应是，旨在强化体能的非生产性肢体活动。
The definition of sport ought to be activity of human limbs and trunk for strengthen physical power but production.
体育的定义应是，旨在强化体能的非生产性肢体活动。
The definition of sport ought to be activity of human limbs and trunk for strengthen physical power but production.
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