1. 地震学   telegraphy   anthropology   etiology, aetiology   seismology   Hint Half-n-half Clue   2. 放射学   radiology   anthropology   calligraphy   accountancy   Half-n-half Clue   3. 整容术   radiology   seismology   cosmetology   theology   Half-n-half Clue   4. 航空学   sociology   aeronautics   telegraphy   topology   Half-n-half Clue   5. 原因论，原因论   economics   topology   archeology, archaeology   etiology, aetiology   Half-n-half Clue   6. 电信法   archeology, archaeology   telegraphy   calligraphy   cosmetology   Half-n-half Clue   7. 人类学   anthropology   seismology   economics   archeology, archaeology   Half-n-half Clue