—Don't forget to phone me when you get to New York.Just let me know you've arrived safely.

—I won't forget.Goodbye then.

—________.[ ]

A. With pleasure  

B. Have a nice trip

C. Don't mention it  

D. It's very nice of you

以下均为脊髓压迫症的原因，除外（）

A.神经鞘膜瘤

B.颈椎融合畸形

C.第四脑室出口闭塞

D.黄韧带肥厚

E.结核