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

— I won't forget. Good-bye then.  

—  ____. [ ]

A. With pleasure                       

B. It's kind of you  

C. Don't mention it                     

D. Have a nice trip

离心泵主轴上装有轴套，作用是对轮定位和保护主轴，防止填料或水中杂质磨损。