Dabie Mountain area is rich in agricultural resources, a wide range of special agricultural products processing take shape, however , the economy of Dabie Mountain area is relatively backward , which seriously restricting the flow of the agricultural products in Dabie Mountain, leading to a variety of problems of selling and buying. In the information age, how to use e-commerce to promote trade in agricultural products is the focus of this paper This paper introduces the characteristics of agricultural production and agricultural e-commercein development in Dabie, e-commerce analysis of Dabie characteristics of agricultural problems in the development process is proposed to promote local agricultural products e-commerce strategies in Dabie Mountains.

Probability limit theory is not only one of the main branches of probability theory, but also important base of others branches and mathematical statistics. In this paper, we discuss the laws of large number and complete convergence of mixing sequence. The paper can be divided into the following two parts. In the first part, we introduce Cesáro uniform integrability and equivalent conditions for sequences of random variable. Then, under these conditions, we establish the weak law of large number and convergence for weighted sums of sequences of random variable of mixing sequence. As an especial example, we obtain the weak law of large number or convergence for mixing sequence. From the course, we can find that Cesáro uniform integrability is also an effective tool for researching the weak law of large number of mixing sequence .In the second part, we investigate a complete convergence theorem of weighted sums of mixing sequence, and prove that the existent results are especial examples for it.

This article discussed the compound function of the integrability from three kinds of integrable function. Two function constitute a composite function ,one of them is the Riemann integrable, through another continuity of function or its derivative continuity, boundedness to get a conclusion whether composite function Riemann is integrable, and the conclusion of literature [1] are generalized.