After graduation she reached a point in her career ___   she needed to decide what to do.[    ]

A. that

B. what    

C. which

D. where

噬血细胞综合征发病的环节包括（）

A.血压下降

B.自然杀伤（NK）细胞数量或功能降低

C.内源性凝血激活

D.细胞因子风暴

E.单核巨噬细胞激活