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曹氏轻声道：你小叔看起来厉害，终究不够心狠。Jiangxi ProvinceWe know that IPTables acts according to rules. Let's talk about rules. Rules are actually predefined conditions for network administrators. Rules are generally defined as "if the packet header meets such conditions, this packet will be processed in this way". The rules are stored in the packet filtering table in kernel space, specifying the source address, destination address, transport protocol (such as TCP, UDP, ICMP), service type (such as HTTP, FTP, and SMTP), and so on. When packets match the rule, iptables processes these packets according to the methods defined by the rule, such as accept, reject and drop. The main task of configuring a firewall is to add, modify, and delete these rules., there is only one activity instance in the stack, and the activity instance is already stored in the stack. In other activity, start this activity, Android directly kicks other activity instances above this instance out of the stack GC;翻过山头，板栗再次让春子去哨探，他和秦淼躲在一块大石后，四处张望。I nodded at this passage, Understand that what Zhang Xiaobo said is indeed reasonable, It is not a lie, Here I think it is necessary to give you one thing about popular science. So we have to say something digressive: The result of a real bullet hitting a petrol tank is not the same as that shown in most movies. One shot can explode the petrol tank, But this is not the case, Although a pure metal projectile will rub against the air at a speed of hundreds of meters per second to generate equivalent heat, And will produce sparks after hitting the metal oil drum, But none of this is enough to ignite petrol, Especially for gasoline with a large total amount, to ignite gasoline, please remember one thing-open flame must be used. In addition, gasoline is a flammable item, but it is not an explosive item in the true sense. Only after reaching a certain total amount can explosion be caused. If the total amount is insufficient, it can only cause combustion without explosion.The income of Lux wristband in the single boss battle is almost zero, because the boss does not eat the repelling effect, but the progress of the fight, most monsters can be sucked, as long as it is sucked, Lux 30% A injury will be increased, and a 15% scourge injury will have such a high income, not to mention how horrible the 30% Lux A injury is to the progress of the attack.