- The role of each key on the keyboard!!! (The history of the most complete) F1 help F2 renamed F3 search F4 address F5 to refresh F6 switch < br> F10 menu CTRL + A Select All CTRL + C copy CTRL + X Cut CTRL + V paste CTRL + Z undo CTRL + …

University school around the edge, prospective college students are happily packaging their bags . However , Beijing City University has been admitted candidates Jiangmen Zhongyu love Four years ago, her mother suffered from cancer , the college entrance e …