You design a Business Intelligence （BI） solution by using SQL Server 2008. The solution includes a SQL Server 2008 Analysis Services （SSAS） database. The database contains a cube named Financials. The cube contains objects as shown in the exhibit. （Click the Exhibit button.） A calculated member named Gross Margin references both Sales Details and Product Costs. You need to ensure that the solution meets the following requirements： Managers must be able to view only their cost centers percentage of the companys gross margin. The impact on query performance is minimal. What should you do？（） [" Add dimension-level security and enable the Visual Totals option."," Add cell-level security that has read permissions on the Gross Margin measure."," Add cell-level security that has read contingent permissions on the Gross Margin measure."," Change the permissions on the Managers dimension level from Read to Read\/Write."]
发展党员坚持入党（），是由我们党的性质和宗旨所决定的。
酶的一些不足之处（酶固定化的原因）
下列哪些属于有关职业危害方面的标准：（） ["《体力劳动强度分级》","《高温作业分级》","《企业职工伤亡事故分类》","《生产性粉尘危害程度分级》","《橡胶生产配炼车间防尘规程》"]
再现型文本是注重客观地和理智地呈现社会事物并讲究细节逼真的文本，它的特征有客观性、（）、细节逼真性。 ["待解性","理智性","说理性","暗示性"]
强化的种类有哪些？
