1. 社会学   sociology   rheology   telepathy   anthropology   Hint Half-n-half Clue   2. 加減抵抗器   telegraphy   sociology   radiology   rheology   Half-n-half Clue   3. 地震学   telepathy   etiology, aetiology   seismology   anthropology   Half-n-half Clue   4. 電信術   aeronautics   theology   telegraphy   choreography   Half-n-half Clue   5. 航空術, 航空学   choreography   rheology   accountancy   aeronautics   Half-n-half Clue   6. 占星学   astrology   anthropology   economics   ornithology   Half-n-half Clue   7. 美容術   economics   telegraphy   astrology   cosmetology   Half-n-half Clue