The project is not going well and many changes are being made. Which of the following should you do FIRST to gain control of the project

A) Review the scope of work with the stakeholders.
B) Create a new change form.
C) Remind everyone of the change procedures.
D) Ask management for help.

Langerhans细胞组织细胞增生症的类型包括（）

A.骨嗜酸性肉芽肿

B.Hand-Schuller-Christian病

C.Letterer-Siwe病

D.Rosai-Dorfman病

E.Castleman病