1/ The bubble jet printing system prints characters and graphics E/ by firing ink drops at the paper from thin nozzles.

2/ Hard mineral-laden water can be made soft A/ by using water softener chemicals.

3/ The user may personalize his or her text editor D/ by binding keys to commands.

4/ A considerable improvement in television sound quality can often be achieved B/ simply by tapping off the audio signal from a "Tape" or "Earphone" output and feeding it through an audio system.

5/ The condition of the bearings can be ascertained during operation C/ by checking the bearing temperature, observing the lubricant colour or the like.