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多边投资担保机构（MIGA）承保的风险包括哪些？

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可缩性金属支架架间应用使用（）拉杆

A. 木质
B. 金属
C. 撑木
D. 木质或金属

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铲运机传动系统的作用将发动机发动的动力传给从动车轮，使车辆行驶。

A. 正确
B. 错误

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You are developing a Windows Communication Foundation (WCF) service to replace an existing ASMX Web service.The WCF service contains the following code segment. (Line numbers are included for reference only.) 01 [ServiceContract()] 02 03 public interface IEmployeeService 04 { 05 [OperationContract()] 06 EmployeeInfo GetEmployeeInfo(int employeeID); 07 08 } 09 10 public class EmployeeService : IEmployeeService 11 { 12 13 public EmployeeInfo GetEmployeeInfo(int employeeID) 14 { 15 ... 16 } 17 } 18 19 20 public class EmployeeInfo 21 { 22 ... 23 public int EmployeeID { get; set; } 24 public string FirstName { get; set; } 25 public string LastName { get; set; } 26 27 }The existing Web service returns the EmployeelD as an attribute of the Employeelnfo element in the response XML.You need to ensure that applications can consume the service without code changes in the client. What should you do?（）

A. Insert the following code at line 02. [DataContractFormat()] Insert the following code at line 22. [DataMember()]
B. Insert the following code at line 02. [XmlSerializerFormat()] Insert the following code at line 22. [XmlAtttibute()]
C. Insert the following code at line 09. [XmlSerializerFormat()] Insert the following code at line 22. [XmlAttribute()]
D. Insert the following code at line 19. [DataContractFormat()] Insert the following code at line 22. [DataMember()]

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牍是什么？

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