1. shen xue   cosmetology   theology   telegraphy   aeronautics   Hint Half-n-half Clue   2. hang [kong;kong] xue   seismology   topology   aeronautics   anthropology   Half-n-half Clue   3. shu fa   ornithology   sociology   calligraphy   cosmetology   Half-n-half Clue   4. ren lei xue   anthropology   aeronautics   etiology, aetiology   cosmetology   Half-n-half Clue   5. ba lei wu dao yi [shu;zhu]   aeronautics   radiology   choreography   economics   Half-n-half Clue   6. [ta;tuo] pu [jie;jie] gou   topology   sociology   archeology, archaeology   telegraphy   Half-n-half Clue   7. zheng rong [shu;zhu]   calligraphy   cosmetology   topology   telegraphy   Half-n-half Clue