trapdoor : 25 phrases in 12 subjects |
Biology | 2 |
Computer networks | 3 |
Construction | 1 |
Cryptography | 2 |
Electronics | 3 |
General | 2 |
Information security and data protection | 6 |
Makarov | 1 |
Mass media | 1 |
Programming | 1 |
Weapons and gunsmithing | 1 |
Zoology | 2 |