题目内容：
There is no risk to public health.
参考答案：
答案解析：
单选题：There is no risk to public health.
- 题目分类：理工类
- 题目类型：单选题
- 查看权限：VIP
Some children have never seen a dentist before starting scho
Some children have never seen a dentist before starting school．
Boys miss more school hours each year due to dental，―related
Boys miss more school hours each year due to dental，―related illness.
Dental and oral diseases are common in both adults and child
Dental and oral diseases are common in both adults and children
The town is famous for magnificent buildings.
The town is famous for magnificent buildings.
社会主义道德区别于一切旧道德的基本特征是（ ）
社会主义道德区别于一切旧道德的基本特征是（ ）