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I think if children can communicate with other children from different areas , that racism can soon be a dreadful thing in the past . Participants discussed the educational systems of different countries , development trends in education , the role of international cooperation in higher education , educational development in China since it joined the World Trade Organization , international cooperation in the educational field and new openings for exchanges . Organic ligands , used as the solvent and to control the QD growth rate during preparation , coordinate the surfaces of the QDs and may be exchanged for alternate organic molecules with different lengths and electronic structures . " " With one tube on the left flowing in a number of mitochondria per second , and microliters of different drugs in different packets flowing in to join them on the right , we could rapidly run through hundreds of different compounds . Note : The five fire regimes and three condition classes included in this coarse-scale analysis provide a comprehensive approach to understanding key characteristics of different ecosystems .