To what it seems like, it’s d
It is used to repeat any block of code multiple times (iteration)
It gains purchasing power. Less money in circulation = more value.
The correct sequence is: 5,3,1,4,2
When you are installing software on your computer you need to first open the CD-ROM and then insert the installation CD into the CD-ROM. If the contents of the CD opens, click on the executable file to start the wizard, and then follow the prompts in the wizard. Finally, you often need to reboot your computer after installing a new program.