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问题描述：

[单选] 《危险化学品重大危险源监督管理暂行规定》于（）起施行。
A．201 0年1 2月1[] B．201 1年1 0月1[] C．201 1年1 2月1 B
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上一篇：对重大危险源进行风险评价最好采用（）风险评价方法。 下一篇：危险化学品单位在完成重大危险源安全评估报告或者安全评价报告后（）日内，应当填写重大危险源备案申请表，将重大危险源档案材料报送所在地县级人民政府安全生产监督管理部门备案。

随机题目

采取改变工艺，隔离危险源，实施有效的通风往往成为最直接、最有效的预防化学危害的手段。（）
C A taxi hit a truck． A policeman spoke to the taxi driver and to the truck driver． He also spoke to Tom． He was a witness （目击者）． This is what they said． TRUCK DRIVER: I was driving from the airport to Newton． A car crossed the road， so I slowed down． I did not stop． A taxi hit the back of my truck． Nobody was seriously hurt but both cars were damaged（受损害）． TAXI DRIVER: I was driving behind a truck a few kilometers from Newton． The truck stopped suddenly． The driver did not give me a warning （警告）． I was driving very slowly． I could not pass the truck because there were two cars coming near from Newton． My taxi hit the truck， and some glass cut my left hand． TOM: I was watching the traffic about a kilometer from the airport． A truck was going to Newton． It was not going very quickly． There was a taxi about two hundred meters behind the truck． It was going fast． When the truck slowed down， the taxi hit it． The taxi driver was not looking at the truck． He was looking out of the window at something． My friend saw the accident， too． Tom"s friend spoke to the policeman and agreed with Tom．11． How many people are mentioned （提到） in the story？
洗手的五个指征？
血液、体液暴露时的紧急处理？
皮肤被污染物污染后应急处理方式？
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