Existing receiver based routing protocols can be applied to mobile sensor networks,but they still suffer to some disadvantages in the fields of forwarding priority calculation,data collision,multicast suppression and routing void bypass.

Inferring packet forwarding priority through end-to-end measurement;

And a series of policies and problems on the preferential development of .

High education optimal investment bilevel programming models on the strategy of prior development;

Deng Xiaoping s thinking of prior development in education is a theoretical foundation and practical ground for our Party to make the strategy that scienceand education can make our country more prosperous and stronger with talented persons.

Deng Xiaoping s idea of the prior development of education is of great significance in that we realize the critical place of productivity and the relationship between the three productive elements, that intellectuals play an active role in socialist construction, and that China s sustainable development can be achieved.

At the end of this paper we draw some new conclusions under nonlinear demand that whether it is first-mover advantage or second-mover advantage is based on the price elasticity of demand.

Based on defining strategic innovation,strategic following,and first-mover advantage,this paper analyzed factors about technology and marketing,which affect first-mover advantage.