You are creating a Windows Forms Application by using the .NET Framework 3.5.You plan to design a control for the application.You need to ensure that the control meets the following requirements： （1）Contains the DataGridView， BindingSource， and BindingNavigator controls. （2）Exposes the properties of the BindingSource control. （3）Protects the properties of the DataGridView and BindingNavigator controls. What sholud you do？（） ["Extend the Control class.","Extend the ContainerControl class.","Create protected accesses for each control property.","Create public accesses for the properties of the BindingSource control."]
幼儿园常规制度的类型，主要有几大类（） ["A、全园性制度 ","B、幼儿园考核与奖惩制度 ","C、部门性制度 ","D、各类人员岗位责任制"]
以下人员中不能参加城乡居民基本医疗保险的是（）。 ["农村居民","灵活就业人员","城镇非从业居民","国家和我省规定的其他人员"]
暂停指令是（）。牐 ["G00","G01","G04","M02"]
（）、（）、（），是新闻宣传工作贯彻“三个代表”重要思想的具体化。 ["贴近实际","贴近党","贴近生活","贴近群众"]
化学吸附膜
