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1990年，在《滴水穿石的启示》一文中，习近平同志这样写道：
，这一点在91视频中也有详细论述
二、大力组织开展面向大学生的科普工作
Germany's Federal Office for Information Security (Bundesamt für Sicherheit in der Informationstechnik, or BSI) tested the devices. BSI first approved the iPhone and iPad for governmental use by German authorities in 2022. To take the additional step of NATO approval, Apple says BSI conducted exhaustive technical assessments, comprehensive testing and deep security analysis.