（）是指由于社会分工而形成的具有特定专业和专门职责、并以所得收入作为主要生活来源的工作。 ["行业","职称","职业","职位"]
党必须加强对工会、共产主义青年团、妇女联合会等群团组织的领导，使它们保持和增强（），充分发挥作用。 ["纯洁性","政治性","先进性","群众性"]
购买应当按照政府采购法的有关规定，采用（）等方式确定承接主体。 ["A.公开招标 ","B.邀请招标 ","C.竞争性谈判 ","D.单一来源采购"]
《护士守则》第三条，护士应当为患者提供（），协助完成诊疗计划，开展健康指导，提供（）。
You create a Microsoft ASP.NET application by using the Microsoft .NET Framework version 3.5. You write the following code fragment： <asp：DropDownList AutoPostBack="true" ID="DropDownList1" runat="server" onselectedindexchanged= "DropDownList1_SelectedIndexChanged"> <asp：ListItem>1</asp：ListItem> <asp：ListItem>2</asp：ListItem> <asp：ListItem>3</asp：ListItem> </asp：DropDownList> You also add a MultiView control named MultiView1 to the Web page. MultiView1 has three child View controls. You need to ensure that you can select the View controls by using the DropDownList1 DropDownList control. Which code segment should you use？（） ["A","B","C","D"]
戴奥真尼斯（Diogenes）
