高处焊接作业时,操作者首先要做些什么?
参考答案:
高处焊接作业时,操作者首先要系好安全带,防止高空坠落。
纠错。
( ) 1. Can't eat in the classroom.
A B C
( ) 2. Are at home by 10: 00 on Sunday nights.
( ) 3. Don't watch TV at school nights.
( ) 4. Clean your room everyweek.
( ) 5. Your can't have to wear your unilorm at home.
药师在合理用药中的作用不包括()
A、提供信息
B、提出建议
C、药物治疗监测
D、参与诊断
E、宣传教育