问题
单项选择题
下列关于数据仓库的叙述中，不正确的一项是______。
A．数据仓库中间层OLAP服务器只能采用关系型OLAP
B．数据仓库通常采用三层体系结构
C．数据仓库前端分析工具中包括报表工具
D．底层的数据仓库服务器一般是一个关系型数据库系统
答案
参考答案：A
解析： 数据仓库中间层的OLAP服务器可以是关系型也可以是多维OLAP服务器。
搜题请搜索小程序“爱下问搜题”
下列关于数据仓库的叙述中，不正确的一项是______。
A．数据仓库中间层OLAP服务器只能采用关系型OLAP
B．数据仓库通常采用三层体系结构
C．数据仓库前端分析工具中包括报表工具
D．底层的数据仓库服务器一般是一个关系型数据库系统
参考答案：A
解析： 数据仓库中间层的OLAP服务器可以是关系型也可以是多维OLAP服务器。
Whenever my kids have a party at school, I am the mom who always signs up to bring the juice boxes. It’s not because I’m 26 or that I don’t care if my kids have a good party. I am just not good at making homemade bread into holiday-themed shapes like other mothers. 27 , I’m happy to try, even though it’ll 28 me a long time to do it. People say that housewives should have the 29 to make delicious meals, keep their houses clean, and 30 every minute of their child’s life. Their words used to 31 me a lot. I felt that I should also be able to do those things as a housewife. So 32 I couldn’t make the turkey-shaped cookies, I 33 feeling like a failure as a mom. After many 34 attempts at baking, and many afternoons spent crying over my inabilities as a mother, I finally accepted the 35 that my lot(命运) in life is to be the juice box mom. I worked hard to be the 36 one in the elementary school. And after one of my daughter’s class parties, it 37 . Her teacher stopped me as I was leaving and said,＂Thank you so much for always bringing 38 drinks. Sometimes parents forget that other children will also 39 class parties, and they end up being left out because we don’t have enough 40 for everyone.＂ I just accepted her appreciation, rather than telling her that I brought extra drinks because I could 41 remember how many kids were in the class. But her 42 taught me an important lesson: I’m not a failure as a mom. Not everyone is cut out to be a(n) 43 mom. I believe it’s okay to be the juice box mom. I may not bake cookies and decorate them beautifully, but I 44 something to drink. And I think that’s just as 45 .
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