A. An arrangement or configuration of classification or measurement: the taxonomic system; the metric system. George J. Klir preserved that no "classification is total and excellent for all uses", and defined systems as abstract, true, and conceptual Actual physical systems, bounded and unbounded systems, discrete to steady, pulse to hybrid https://e-zigarette08652.digitollblog.com/26639003/the-smart-trick-of-e-zigarette-that-no-one-is-discussing