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1. There are two options to manage the creation and destruction of state objects. The first is to create and then destroy state objects only when they are needed, and the other is to create all state objects from the beginning and never destroy them. If the state object is relatively large, the first method can be used to save memory, which can avoid creating some objects that will not be used and recycle them in time. However, if the state changes frequently, it is best to create all these state objects in the first place, and there is no need to destroy them, because they may be used again soon.2. When the hovercraft is sailing in a non-drained state, in addition to the signal lamp specified in paragraph 1 of this article, a yellow flashing lamp shall also be displayed.专门来看周爷爷的么——周菡紧张地问：有没有专门来看他的？黄豆点头道：当然有。本部电影讲述了为追寻爱情，苏州女孩程子欣随男友来至香港，在一家金融公司供职。谁知男友移情别恋，令子欣备受打击。偶然机缘，她结识了正处于瓶颈期的建筑师方启宏，二人互相勉励，子欣丢掉了关于前男友的一切，启宏也决定重新出发，并相约一周后给子欣看最新的设计图。公主是看上本将军了？外面的林聪听了这话，差点没被自己的口水给呛了。被绝望和痛苦缠绕的米尔德雷德租下了高速公路边上的三块巨型广告牌，在上面控诉警方办案无能，并将矛头直接对准了警察局局长威洛比。实际上，威洛比一直隐瞒着自己身患绝症命不久矣的事实。因为这三块广告牌，米尔德雷德和威洛比的生活发生了翻天覆地的变化。