伯努利方程:<i atsid="23" style="color: #D60;">@0111xyz</i>:我是觉得应该是悲剧,可是普罗大众接受不了啊<img src="/nice/empty22.png" style="width: 22px!important; height: 22px!important; background: url(/nice/nicEditorIcons-large-m.png) -88px -36px;" />