ACCRA, July 16 (Xinhua) -- Ghana will transition to solar-powered streetlights as part of the efforts to ease pressure on the national electricity grid and ensure energy efficiency, the country's ...

（伦敦16日讯）地缘政治风险升温与外汇储备压力持续攀升之际，全球央行加速储备黄金，并掀起一股“本地采购”的新趋势。根据世界黄金协会（WGC）最新调查，越来越多央行正从本国的小规模与手工采金矿购买黄金，借此减少对外汇市场的依赖，同时支持本土产业发展。《 ...