简述影响团体凝聚力的因素。
您目前正在审查由其他开发人员创建的应用程序的过程中。您正在检查的应用程序包括声明一个名为 EmployeeList，其中存储雇员对象的集合。如下所示：公共类 EmployeeList： Enumerator, IEnumerable{/ / 类实现}您需要的能力来循环访问 EmployeeList，最小的开发工作。你应该做什么？（） ["利用switch语句","利用dowhile语句","利用foreach语句","使用if语句"]
单片透明玻璃的传热系数K值就与同样厚度PVB夹层玻璃相比（）。 ["A.小 ","B.大 ","C.相同 ","D.没有结论"]
下列各项中，属于加剧产业竞争的主要因素有（）。 ["竞争对手时常更换","产业已进入成熟期","产业进入障碍低而退出障碍高","企业拥有稀缺资源"]
You create a Web site that is for members only. The Web site allows members to create lists of users that have access to information about member profiles. The name of the list is stored in the listName variable. The user name of the user to whom access is given is stored in the username variable. You need to enable members to manage their lists of users. Which code segment should you use? （） [" Roles.CreateRole(listName);User.InInRole(listName);"," Roles.CreateRole(listName);Roles.AddUserToRole(useName, listName);"," Roles.RoleExists(listName);Roles.AddUserToRole(useName, listName);"," Roles.RoleExists(listName);User.InInRole(listName)"]
简述布匿战争。
