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2. Mathematical period: For a function f (x), if there is a non-zero constant T, so that when x takes every value in the domain, there is f (x + T) = f (x), then the function f (x) is called a periodic function. The nonzero constant T is called the period of this function.呵呵，看你手艺了。啊？哎呀，真难听，我以后再也不看了，我们拍摄的《白发魔女传》肯定能好过它一百倍。属下当着上万人的面，脱了外甲脱内衣，扒了上衣扒裤子，当猴一样被人瞧，连拉屎撒尿、洗脸洗脚都交代的一清二楚，威信和颜面荡然无存。就在许萧为张小凡捏一把冷汗的时候，天音寺的一个高僧说出了一个秘密——当年传张小凡高深佛法的那个高僧，正是杀害张小凡全村的凶手。"Let 's put it this way, Hit the wasp with ordinary bullets, One shot at most, But it's not the same with drag armour-piercing bombs, As long as it hits the big wasp, The big wasp can burn into a fireball in an instant. Then as long as you touch the same kind around you slightly, You can set them on fire, Let them burn themselves between themselves, Ordinary bullets cannot achieve this effect without this function, In fact, just like the principle of "74 spray", Although the area covered by the burning cannot be compared with the flame tongue emitted by the '74 spray', However, the effective range of traced armour-piercing firebombs is far away. They can be hit at a distance of several hundred meters, which is much stronger than the '74' spray, which takes 30 meters to fire. If you think about it, we can kill them efficiently only when hundreds of big wasps fly to a distance of 30 meters from you. The pressure is not generally large, but quite large.第二季才刚刚播出一集，AMC就宣布续订了第三季，共16集，2017年播出。