激素和免疫抑制剂治疗ITP的原理是（）

A.清除导致ITP的病毒

B.抑制导致ITP的炎症反应

C.抑制ITP机体的异常免疫反应

D.促进骨髓巨核细胞的成熟

E.刺激骨髓的血小板造血

Health is very important to us. We should eat more vegetables and fruit ____ too much rich food.[ ]

A. instead of  

B. instead  

C. replace  

D. stand for