风管组对时,风管连接处采用密封材料应满足()的技术条件。
A.耐高温
B.耐潮湿
C.系统功能
D.抗疲劳
参考答案:C
根据所给音标或提示完成句子。
1. All the children are _____ / ik'saitid / at New Year's Day.
2. F_____ is the second month of a year.
3. We have a long _____ (假期) in May.
4. 1st June is _____ Day.
5. _____ comes after Spring.
工作场所职业病危害因素的强度超过国家职业卫生标准的,由卫生行政部门给予警告,责令限期改正,逾期不改正的,处多少金额的罚款?