I find this Math problem very ______. I believe students can work it out ______.

A．easily; easy

B．easy; easily

C．easily; easily

D．easy; easy

初级卫生保健的工作重点应是（）

A.治疗疾病

B.预防和促进健康

C.社区康复

D.计划生育

E.寻找各种致病因素