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Advanced Mathematics (3rd Edition of Peking University): I don't read much books on linear algebra. I studied advanced mathematics when I was in school, but it doesn't matter. Just look at the first five chapters. Cooperate with the corresponding video and master the relevant knowledge of matrix and determinant.At that tail of the warhead, the drag armour-piercing firebomb is filled with a drag agent and a fireagent, Under the pressure of propellant propelling warhead, it will spontaneously ignite to produce open flame, So it can break through the oil drum and ignite or detonate the gasoline. However, the old-fashioned traced armour-piercing firebombs have obvious trajectories due to traced light when they are launched. Therefore, it is very easy to expose oneself while pointing targets to friendly forces. Therefore, the new tracer armour-piercing firebombs now equipped all start to burn and emit light only after the projectile flies out of the muzzle for a certain distance (the generally set safe distance is 100 meters, which makes it impossible for the enemy to judge the firing position with tracer ammunition, while targets within 100 meters do not need to be indicated by tracer), The principle is generally to ignite the tracer and combustion agent carried by the projectile by accumulating the heat generated by the warhead's friction with the air after flying for a certain distance to a certain extent.On March 5, 2014, during the media open day of the Second Session of the 12th National People's Congress, a female reporter did not win the opportunity to interview and left tears of regret after the meeting.胡指挥一定出身名门吧？行事确实与我们这些山野乡民不同。展硕邻居文颖朗为爱犬之人，对展硕待犬只的态度极之不满，因此当爱犬东东失踪时，颖朗认定乃展硕所为，二人关系势成水火。时一只自来狗豆豆突然出现，弥补了颖朗的伤痕。不料，Rocky竟与豆豆共堕爱河，但见主人互不瞅睬，两只精灵狗儿顿觉头痛...　　这一切打得殷采倩措手不及，他们的感情终将何去何从？正是因为这些缘故，他们才能出其不意地给项声以沉重地打击，取得意想不到的胜利。