“This certicate is valid for six months from the date of issue.”，最确切的翻译是（） ["本证书自即日起，有效期为6个月","本证书在6个月内有效","本证书自签发之日起，有效期为6个月","本证书自领证之日起，有效期为6个月"]
You have an Exchange Server 2010 Service Pack 1 organization named contoso.com.All users have the contoso.com e-mail address suffix. You discover that both anonymous and authenticated users can post content to a public folder named Folder1 by sending e-mail messages to folder1@contoso.com.You need to prevent all users from posting content to Folder1 by sending e-mail.What should you do？（） ["From Outlook Web App （OWA）， modify the properties of Folder1.","From the Exchange Management Shell， modify the permissions of the default Receive connector.","From the Public Folder Management Console， modify the properties of Folder1.","From the Exchange Management Console， modify the properties of the Public Folder database."]
电梯安装之前，所有厅门预留孔必须设有高度不小于（）的安全保护围封。 ["800mm","1000mm","1100mm","1200mm"]
飞行事故的死亡原因就是广泛性损伤。
一项新发明诞生的时候应该先（）。 ["发表文章","向市场推广","可行性验证","申请专利"]
社会政治思想
