PPSC Past Paper Excise & Taxation Inspector Region (LAHORE) Excise, Taxation & Narcotics Control Department 2018 Solved MCQs, General Knowledge MCQs, PPSC Solved Past Papers MCQsThe first UN Conference on Environment and Development was held in 1992 at?A. Johannesburg B. Rio de Janeiro C. New York D. Nairobi Otto Von Bismarck was?A ___________ is a data communication system within a building, plant, or campus, or between nearby building?
