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Let's use the traditional object-oriented pattern to design the code first:所以范家在山yīn城里根基深厚，一直被视作很久的本土势力，近些年还因此成为越国山yīn四大家族之一。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.他顿时面色森寒。吕雉轻轻点头道：好的，一切都拜托汉王了。　　据悉，索尼已经与很多家知名的App达成协议，将会在电影中用到他们的App，其中包括音乐应用Spotify。普通人不会认为小野宗房和鞍马天狗有什么关系...