If you're in a program like Microsoft word and you press ctrl-E, it aligns to center.
Underline
ctrl an plus zoom the screen in an ctrl minus dezooms it
opens a search box in the top right corner
[CTRL]+C is achieved by holding CTRL while pressing C.
If you mean it as a short cut on a PC, then it prints.
ctrl shift - reverses the effect of ctrl shift =
ctrl plus r reloads a webpage.
The keyboard shortcut notation ctrl plus esc means you press the Control key concurrently with the Escape key. On a Windows PC, the Ctrl + Esc shortcut produces the Start Menu.
Ctrl + 1
It makes what is on the screen bigger. Another way to do it is ctrl + plus or ctrl + scroll wheel up/down.
It increases the magnification of the screen. CTRL plus _ does the reverse.