This dictionary is _____ to me, but that one is _____ . [ ]

A. great help; helpful            

B. a great help; of little use

C. important; of few importance    

D.  very helpful; of no any use

眩晕病的治疗原则是（）

A.补益气血

B.平肝潜阳

C.滋养肝肾

D.填精生髓

E.补虚泻实，调整阴阳