That makes the duo the oldest known fossil evidence of hitch-hiking behavior, or phoresy, in a large group of mites called the Astigmata.
2
文章运用博弈论,解释了营销团队中存在的搭便车现象,并阐述了在两种人性假设基础上的营销团队激励机制。
Through the using of game theory, this paper has explained free-riding situation which existed in marketing team, and described incentive mechanism of marketing team based on two assumptions...
3
个人没有动力向社会事业捐款的现象被称为搭便车问题。
The lack of incentive for individuals to contribute to a social good is known as a free-rider problem.