在UML中，活动图是显示特定用例之间的详细流程。并且显示了它们之间的交互，以及对象之间发送消息的顺序。
十八大报告中提出全党要坚定“三个自信”，具体是指（）、（）、（）。
A Windows Communication Foundation （WCF） service has a callback contract. You are developing a client application that will call this service. You must ensure that the client application can interact with the WCF service. What should you do？ （） On the OperationContractAttribute， set the AsyncPattern property value to True.。 On the OperationContractAttribute， set the ReplyAction property value to the endpoint address of the client. For interactive and self-paced preparation of exam 70-513， try our practice exams. Practice exams also include self assessment and reporting features!。 On the client， create a proxy derived from DuplexClientBase（Of TChannel）.。 On the client， use GetCallbackChannel（Of T）.。
涉外结婚的准据法
含矿岩系及矿床有何特征？
上回转塔式起重机传动机构有（）
