飓风“海伦妮”席卷美国北卡罗来纳州 损失或超530亿美元
美文示范
特朗普当选,美官方在进博会表态
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In the 21st century, U.S. election costs have risen with each cycle. America may appear to follow the “one person, one vote,” rule, but in reality, it is more like “one dollar, one vote,” concealing issues like political donations, money-for-power deals, and an unchecked “revolving door” between government and private sectors.(Yang Xin)
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《指南》规划未来10年研制建立10项剂量、活度、中子计量基准,86项电离辐射领域计量标准,21种放射性核素活度标准物质,在电离辐射领域组织实施产业计量技术基础创新工程,前瞻性、引领性布局电离辐射计量基准、计量标准和标准物质等计量重大能力建设项目,增强电离辐射相关领域计量能力高质量供给,集中力量解决制约相关传统产业升级、新兴产业壮大和未来产业培育的“测不了、测不全、测不准、测不快”难题。