题目内容
按照突发事件发生的紧急程度、发展态势和可能造成的危害程度，我国将突发事件的预警级别确定为（）个级别。
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甲烷传感器在每次通气的过程中同时要观察测量报警点、断电点、复电点和声、光报警情况。以上内容也可以单独测量。
生产上常用的育苗方式有哪些？
财务评价是建设项目经济评价中的微观层次。
Your company has a main office and one branch office. All servers run Windows Server 2003 Service Pack 2 (SP2). The relevant portion of the network is configured as shown in the exhibit. (Click the Exhibit button.) All computers in the branch office are configured to use DNS2 as their DNS server.Users in the branch office report that they cannot resolve the IP addresses for servers on the Internet. You run Dnscmd as shown in the following Command Prompt window.You need to ensure that users in the branch office can resolve the names of Internet hosts. What should you do on DNS2?（）
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