九头鸟棋牌游戏中心：博彩e族小兰专家说还要用几百年
Template documentationThis template's initial visibility currently defaults to autocollapse, meaning that if there is another collapsible item on the page (a navbox, sidebar, or table with the collapsible attribute), it is hidden apart from its title bar; if not, it is fully visible.
To change this template's initial visibility, the |state= parameter may be used:
{{Operating systems|state=collapsed}}will show the template collapsed, i.e. hidden apart from its title bar.{{Operating systems|state=expanded}}will show the template expanded, i.e. fully visible.