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问题 单项选择题

下面的条目中，哪些是IBM数据仓库三层结构中的组成部分？Ⅰ.OLTP业务系统　 Ⅱ.前台分析工具　 Ⅲ.数据仓库 　Ⅳ.数据集市

A．Ⅰ、Ⅱ和Ⅲ

B．Ⅰ、Ⅱ和Ⅳ

C．Ⅰ、Ⅲ和Ⅳ

D．Ⅱ、Ⅲ和Ⅳ

答案

参考答案：C

解析：IBM数据仓库由3部分组成：OLTP业务系统、数据仓库和数据集市。

填空题

Dear Sirs,
We welcome your enquiry of April and thank you for your interest in our hats and caps.
As you may be well aware, we are a state-run corporation handling this line of business for many years. So we are in the good position to serve our customers with the most reliable quality of the line you suggested.
We can make products according to the given design and produce the designed goods in large quantities.
We are enclosing our illustrated catalogue giving the details you ask for. Also under separate cover we are sending you a full range of samples. When you have a chance to examine them, we feel confident that you will agree that the quality of material used and the high standard of workmanship will appeal to the most selective buyers.
We hope the catalogue and samples will reach you in good time and look forward to your order.
Yours sincerely,
x x x

What will appeal to the most selective buyers
The of material used and the high standard of the workmanship.
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单项选择题

移动客户话费短厅自助查询号码（）

A.1008611

B.1008688

C.1008699

D.1008616
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