Relier Pairs SCIENCEVersion en ligne Watch the video and when you're done, do the task. par Marina Veceva 1 2 3 4 The Bulgarian, Koicho Mitev has invented "Digital Literacy and Method of Communication in Mother Tongue". Pulsar - this is the name of the first prototype of an electronic clock created by the Bulgarian engineer Peter Petrov. The automatic transmission is the work of Rumen Antonov. Dr. Lozanov - a psychologist, known for the suggestopedia.
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