You work as an application developer at Certkiller .com. Certkiller .com has been hired by a small local private school to develop a class library that will be used in an application named ManageAttendance for the purpose of managing student records.You are responsible for developing this class library. Certkiller .com has instructed you to create a collection in the application to store learners’ results. The school has informed you that they currently only have seven learners， but that this value will triple in the following year. Due to the limited resources， you need to ensure that the collection you create consumes a minimum amount of resources. What should you use to create the collection？（） [" The HybridDictionary collection class."," The HashTable collection class."," The ListDictionary collection class."," The StringCollection collection class."]
当具有近期有（）且试件组数不小于30的混凝土强度资料时，其混凝土强度标准差可以通过公式计算得到。 ["A.不同品种、同一强度等级 ","B.同一品种、同一强度等级 ","C.不同品种、不同强度等级 ","D.同一品种、不同强度等级"]
Refer to the show interface Gi0/1 switchport command output shown in the exhibit. Which twostatements are true about this interface？（） ["This interface is a member of a voice VLAN","This interface is a dot1q trunk passing all configured VLANs","This interface is a member of VLAN7","This interface is configured for access mode","This interface is a member of VLAN1"]
Certkiller.COM运行Windows Server 2008的域控制器。它被配置作为DNS服务器。你必须记录所有入站的DNS查询服务器。在DNS管理器控制台，你应该怎么配置（） ["记录错误和警告，配置事件日志记录","禁用递归查询的自动日志","启用自动测试递归查询","启用调试日志记录"]
试分析比较布鲁纳认知发现学习理论与奥苏贝尔有意义接受学习理论的异同。
风险管理具体可以分为风险识别、（）、风险规划和（）四个步骤。
