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Free normal students as the main force of the future teachers, the IT capability are an important factor to affect the process of education information. Basis for the different needs of free normal students in professional background, professional characteristics and self-improvement aspects, combined with computer-based course requirements, to divide and describe the content of curriculum knowledge...
Progresses in the study of speciation and biological uptake of arsenic in soil are introduced. The researches on bioavailability of arsenic are summarized, and the main factors which affect arsenic bioavailability are emphatically discussed. Relationship between speciation and availability of arsenic is concluded and the concerned problems and future development orientation are pointed out.
Through studying the adjacency matrix of trees and analyzing the correspondence between the tree and adjacency matrix, the characteristics and storage structure of binary trees' adjacency matrix is summed up in the paper, and the binary trees' A- sequences and B- sequences is solved in parallel by applying adjacent matrix.
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.