A 4-year-old girl is admitted to the hospital to rule out leukemia. Which of the following would be the best room assignment ？（）

A．With a 4-year-old girl who has rheumatoid arthritis.

B．With a 5-year-old boy who is having a tonsillectomy.

C．With a 4-year-old girl who has leukemia.

D．Alone in a private room.

以下哪些是先天性胆总管囊肿手术的治疗原则

A．胰胆分离

B．去除病灶

C．肝门胆管成型

D．通畅引流

E．加抗反流措施