实施健康教育活动的首要任务是（）。
A.制定健康的公共政策
B.确定优先项目
C.建立领导机构
D.制定健康促进规划
E.合理评估
参考答案：C
Both of his parents insisted that he _______ get on well with his lessons and that he ______ given more extra classes at weekends.
A．didn’t; be
B．didn’t; was
C．doesn’t; should be
D．didn’t; would be
癌变概率最大的癌前病变是（）
A.白斑
B.红斑
C.扁平苔藓
D.扁平疣
E.慢性溃疡
