At least 15 people have been killed and others injured after a Bolivian air force cargo plane crashed in the western city of El Alto, the country's authorities say.
第四十二条 从事涉及国家秘密的原子能研究、开发和利用活动的单位，应当依法建立健全保密管理制度，完善保密防护措施，开展保密宣传教育，加强保密监督检查。
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Валентин Карант (редактор отдела БСССР)