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We know that computers can be used for work, study, entertainment, etc. In addition to the necessary computer hardware, software is also needed. Usually, we call a computer with only hardware but no software "bare metal", which cannot do any meaningful work. At present, software can be divided into two categories according to its use: system software and application software. System software is a program designed for computer systems to efficiently use and manage computer software and hardware resources and support the operation of application software. Such as operating systems, programming languages and language processing programs, network system software, system service programs, etc. Among them, Windows operating system is what we often use. Application software is a variety of programs that are user-oriented and written to solve practical problems. It can be written by users themselves or purchased. For example, office XP, Photoshop, Red Alert and so on, which we often use.2. Find the file path of tools and platform-tools in SDK, which will be useful later; As shown in the figure:……时间慢慢临近五月一号，关于《寻秦记》的谣言也越来越多，越来越离谱。跟着碰碰狐一同倾听神秘的星座童话故事，一起了解星座的由来、起源和传说。听碰碰狐讲述星座的小常识，走近古老而有趣的星座世界。考入重点高中的白一涵，被高冷学霸林星泽所吸引，在闺蜜周小雨的帮助下，渐渐引起了林星泽的注意。与此同时，从国外转学回来的杨天然和白一涵相识，漫长的青春岁月，白一涵、林星泽、杨天然展开了一段感情纠葛，青春年少的时光逝去，成年的他们，命运又走向了不同的结局。《泰坦》新季将展现被小丑所伤后的芭芭拉,本是蝙蝠少女的她坐上了轮椅,成为哥谭的警察局长,与回到哥谭的迪克·格雷森旧情复燃,也合作打击犯罪。Welch本人则在2016年一次车祸后失去了一条腿,从此一直积极为残疾群体发声。1. Make three people number 1, number 2 and number 3.