ubuntu14.04，如何操作Gnome的任务栏？

搜索到的答案：

in gnome classic you must press both the Alt & Super keys at the same time while right-clicking on the panel/applet
you wish to edit, move, or remove. (The Super key is typically the one with the Windows logo).

方法：

同时按下Alt
+Super keys（windows键），并且同时在任务栏上点击鼠标右键。