K猫o nh脿 c谩i
参与互动隐蔽性是潜艇的核心优势，而噪音水平是隐蔽性的核心指标。在上世纪80年代以前，苏联核潜艇噪音水平明显高于美军核潜艇，为美军核潜艇实施尾随提供了可能。
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新华社德黑兰5月2日电伊朗西部科吉卢耶－博耶艾哈迈德省2日发生5.2级地震，已造成至少31人受伤。4月14日、15日为高等教育自学考试的日子，但赵宇却因“无学籍”而无法入场考试。
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