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3. True (+) or false (-) Номер предложения и знаки + или - )1. D.I. Mendeleyev was born in 1834 in Tomsk, Siberia.2. Mendeleyev was a famous Russian physicist.3. Mendeleyev studied at the university in St. Petersburg and at the University of Heidelberg.4. Mendeleyev became director of the Bureau of Weights and Measures in Moscow.