下列不屬于對(duì)物理層信息竊取的是()A、對(duì)存儲(chǔ)介質(zhì)的盜取 B、對(duì)監(jiān)視器的竊聽 C、對(duì)網(wǎng)絡(luò)線路的竊聽 D、對(duì)設(shè)備屏蔽電磁干擾