装置检修前应达到的环境标准?
参考答案:
1、设备内氧含量19%~21%,可燃物质低于安全值,有毒物质低于最高允许浓度。
2、下水井地沟清理干净封好。
3、设备管线置换合格。
根据句意写出下列句子中各月的名称
1. The New Year’s Day is the first day in __________.
2. We often have a long holiday in F__________.
3. —Does Women’s Day come in ___________?
—Yes, it does.
4. I like to go out for a picnic(野餐) in A_______ or M_______ in spring(春天).
5. When is Children’s Day? It’s on _________1st.
6. The two hottest months are J________ and A_________.
7. Classes begin in S__________. We must come back to school again.
8. There will be a seven-day holiday in O__________. We can have a good time again.
9. The last second month is __________.
10. In the USA, in _________, people are very happy, because they have a Christmas Day(圣诞节).
7岁男孩,眼睑水肿4天,伴头痛、眼花,尿呈深茶色2天就诊。2周前曾患扁桃体炎,经用青霉素治疗好转。
如果此患儿出现呼吸困难,颈静脉怒张,吐粉红色泡沫痰,两肺满布湿啰音,错误的治疗是()
A.严格限制水钠入量
B.强力利尿剂
C.静滴硝普钠
D.快速洋地黄化
E.腹膜透析