题目内容

味连根茎横切面显微特征是()

A. 木栓层为数列细胞
B. 皮层较宽,有石细胞散在,单个或成群
C. 韧皮部外侧有纤维束,或伴有石细胞
D. 纤维束外韧型,木质部细胞均木化
E. 髓部有多数石细胞群

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You design a Business Intelligence (BI) solution by using SQL Server 2008. The solution includes a SQL Server 2008 Analysis Services (SSAS) database. A cube in the database contains a large dimension named Customers. The database uses a data source that is located on a remote server. Each day, an application adds millions of fact rows and thousands of new customers. Currently, a full process of the cube takes several hours. You need to ensure that queries return the most recent customer data with the minimum amount of latency. Which cube storage model should you use?()

A. hybrid online analytical processing (HOLAP)
B. relational online analytical processing (ROLAP)
C. multidimensional online analytical processing (MOLAP)
D. automatic multidimensional online analytical processing (automatic MOLAP)

温室效应是由地热而引起的地球变暖现象

A. 正确
B. 错误

水泵房运转人员在接到透水事故报警后,要立即启动所有水泵,把透出的水尽快排出,不用关闭泵房两侧的密闭门。

A. 正确
B. 错误

收音机混频管开路时,接收机会出现()现象

A. 声音失真
B. 无声
C. 正常声音
D. 干扰

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