写出至少三种分离纯化酶蛋白的方法，并作简要叙述。
You need to design an access control and permission strategy for user objects in Active Directory.What should you do？（） ["Make the members of the AdvancedSupport security group members of the Domain Admins security group","Give each desktop support technician permission to reset passwords for the top-level OU that contains user accounts at their own location","Delegate full control over all OUs that contain user accounts to all AllSupport security group","Change the permissions on the domain object and its child objects so that the BasicSupport security group is denied permissions. Then， add a permission to each OU that contains user accounts that allows AllSupport security group members to reset passwords in that OU"]
网络经济下，企业投资活动重点转向了（） ["有形资产","无形资产","固定资产","流动资产"]
经济措施是最易为人们所接受和采用的措施，如（）等。 ["加强施工调度，避免因施工计划不周和盲目调度造成窝工损失使施工成本增加","管理人员应编制资金使用计划，确定、分解施工成本管理目标","对各种变更，及时做好增减账，及时落实业主签证","认真做好资金的使用计划，并在施工中严格控制各项开支","结合项目的施工组织设计及自然地理条件，降低材料的库存成本和运输成本"]
ASP网页的默认扩展名为（） ["axp","html","htm","a"]
如何理解心理健康教育与素质教育的关系？
