同情和开导病人属于（）。

A.药物治疗中的道德要求

B.手术治疗中的道德要求

C.手术后的道德要求

D.心理治疗的道德要求

E.辅助治疗的道德要求

Students are asked to _____ themselves in this boarding school and they are only allowed to go back home once a week.

A．act

B．behave

C．perform

D．observe