17.1 acronyms Correct any mistakes in the use of the acronyms in bold. Note not all sentences contain mistakes. 1. Enter your PIN (personal identification number. All users are required to have two PIN . 2. Sales of DVD have reached an all time low. 3. As you may know, b2b , also known as e-biz, is the exchange of products, services, or information between businesses. 4. The term lifostands for last in, first out – it refers to the way items stored in some types of data structures. 5. We suggest a central role for active oxygen species ( AOS ) during biotic and abiotic stress. 6. There are several types of Content Scramble Systems ( CSS ) which all fall into the category of a Digital Rights Management ( DRMs ) system. 7. An I / O (input / output) interface is required whenever the IO device is driven by the processor. 8. This was part of a Technology Opportunities Program ( TOP ). 9. They are part of ab Natob mission. 10. English level required A pass in either the toe fl or the Cambridge fce examinations.
