尼日尼亚相关论文
本研究以两个执政党(中国共产党和尼日利亚的人民民主党)为个案,旨在考察亚、非两洲政党的动力性质和运作制度。一方面,中国是世界......
Lead Accumulation in Surface Soils and Components of Balenites Aegyptica Specie in a Katsina Urban A
Objective The main objective of this paper is to assess the impact of various vehicular traffic densities on lead (Pb) a......
