If you don't know how to pronounce new words, ________in a dictionary.          [ ]

A. look them up            

B. look they up          

C. look up them            

D. look up they

颅中窝骨折出现脑脊液耳漏的处理原则是（）。

A.卧床休息，头低位

B.使用脱水剂减少脑脊液外漏

C.给予镇静止痛药

D.用棉球堵塞外耳道以减少脑脊液外漏

E.用生理盐水棉球清洁外耳道