颅内动静脉畸形最根本的治疗方法是（）

A.抗凝治疗

B.扩容治疗

C.尽可能避免诱因

D.手术治疗

E.脱水治疗

—I'm going to study engineering in Tsinghua University tomorrow.
— （）.

A. All the best in your study

B. All the best with your study

C. All the best in your business

D. All the best in your new job