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风力达到（）情况下，禁止露天高空作业。

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下列哪些行为是违反身份证有关规定及法律所不允许的？（）

A. 拒绝公安机关查验居民身份证。
B. 身份证丢失无须到公安机关备案。
C. 使用、故意毁坏他人居民身份证。
D. 伪造、变造身份证的。

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焊接电弧有哪几种类型？试说明其主要特点。

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You are creating a Windows Communication Foundation (WCF) service that implements the following service contract.[ServiceContract]public interface IOrderProcessing { [OperationContract] void ApproveOrder(int id);}You need to ensure that only users with the Manager role can call the ApproveOrder method. What should you do?（）

A. In the method body, check the Rights PosessesProperty property to see if it contains Manager
B. Add a PrincipalPermission attribute to the method and set the Roles property to Manager
C. Add a SecurityPermission attribute to the method and set the SecurityAction to Demand
D. In the method body, create a new instance of WindowsClaimSet. Use the FindClaims method to locate a claimType named Role with a right named Manager

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怀孕5个月不小心摔跤流产了，能休息多久？包含法定节假日吗？

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