桡骨远端关节面骨折合并腕关节脱位（）

A.孟氏骨折 

B.盖氏骨折 

C.Colles骨折 

D.Smith骨折 

E.Barton骨折

All but one＿＿＿＿take part in the conference＿＿＿＿tomorrow.

A．is going to； that is to take place

B．are going to； that is about to take place

C．are going to； that is to be taken place

D．are going to； which is to be held