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| extended format | |||
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| CD-ROM Extended Architecture (CD-ROM XA); compact disk read-only memory extended architecture (CD-ROM XA) | |||
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| Enhanced CD (Синонимы: CD Extra, CD Plus, hybrid CD, interactive music CD, mixed-mode CD, pregap CD, track-zero CD suburbian) | |||
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расширенный формат : 21 phrases in 6 subjects |
| Computer networks | 1 |
| Computers | 1 |
| Electronics | 3 |
| Information technology | 9 |
| Mass media | 6 |
| Military | 1 |