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What we understand is that if a single schema is instantiated, it will only be instantiated once. To implement a single schema, we simply use a variable to identify whether the class is instantiated. If it is not instantiated, then we can instantiate it once. Otherwise, we will directly return the instantiated object."Then you mean, in the subsequent battle with the" killer bee ", you still rely on the guns in your hands? If so, what effective means do you have to persist in fighting?" I asked.网络剧《SOMETOON》讲述了主角徐艺珍随着一位暱称为「温暖的砖头」的网友出现之后，发生的故事。描写了喜爱享受小确幸的艺珍，和某处两位与「砖头」非常相似的男人之间，寻找真正的「砖头」的推理趣味的一部推理浪漫剧。The fundamental way to put an end to waste is to make the quantity of production consistent with the quantity of sales. If the production is arranged from the front process to the back process according to the traditional processing sequence, the higher the production efficiency of the process, if its rhythm is not suitable for the back process, the more waste of manufacturing surplus will be generated. Therefore, JIT production reverses the traditional way of transferring parts from front to back, and puts forward the order requirements from the back process to the front process according to the order method. The front process only provides the necessary products in the necessary quantity when necessary. Users can supply as much as they need, thus realizing "zero inventory" and not occupying working capital. Commodities that users do not need will not be produced, which can avoid overstock, obsolescence and deterioration of commodities, and can also avoid the costs of loading and unloading, handling and inventory.影片改编自同名小说，讲述由凯奇扮演的机长驾驶飞机在万米高空突遇诡异气象，同时地球上成百万人神秘消失。凯奇要将破损的飞机迫降，地面上他的女儿也要寻找失踪的妈妈和弟弟。MotionEvent is always received first by Activity