The Green Corporation donated the property to the state of California, with one condition ____ the Green family would be allowed to use it when they wished.

A．what

B．which

C．when

D．that

临床带教通常有以下哪几种形式（）

A.床旁示教

B.门诊示教

C.模仿示教

D.病例讨论

E.电子教材