钻井队队长负责组织本队人员参加井控安全培训取换证，确保井控安全，应持证人员的持证率达到100%。（）
参考答案：对
连词成句。
1. sorry I'm
2. too to nice you see
3. back school welcome to
4. the teacher I'm
5. Women's Happy Day
6. I'm I'm America Amy from
7. tea more some have
8. you from where are
预防先天性畸形有哪些措施？
