Mothers holding jobs outside the home should have ________ schedules to make it easier to care for their children.

A．frequent

B．fluent

C．flexible

D．smooth

晚期癌症病人姑息治疗的主要目的是()

A．延长病人的生存时间 

B．尽可能缓解肿瘤疼痛 

C．减轻症状，维持或改善病人的生活质量 

D．节省经费 

E．放弃抗癌治疗