Publicly, US officials have projected confidence that they know where the uranium is stored. Privately, there is said to be less certainty. In the weeks before the latest US and Israeli strikes, monitors from the Vienna-based International Atomic Energy Agency observed sustained activity outside tunnels built into a hillside near Isfahan, where the material was last documented before the fighting began.
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二是实践层面。在习近平生态文明思想的科学指引下，我国生态文明建设在污染防治、生态保护和绿色低碳发展等方面都取得了举世瞩目的伟大成就，美丽中国建设迈出重大步伐，为编纂生态环境法典奠定了坚实的实践基础，也积累了宝贵经验。