关于石膏病人处理措施的叙述正确的是（）

A.在石膏干固后开窗，便于伤口换药

B.搬运石膏未干的肢体时，要用手掌托扶

C.肢端应包裹在石膏内

D.包裹石膏的患肢疼痛时，可自行服用止痛剂

E.为加速石膏干固，烘烤石膏的温度越高越好

They ask about the things and teachers ______ they still remembered in the school.

A．which

B．that

C．whom

D．who