数据仓库系统分为（）。A、仓库建设 B、数据仓库 C、数据分析_爱下问搜题

搜题请搜索小程序“爱下问搜题”

问题多项选择题

数据仓库系统分为（）。

A、仓库建设

B、数据仓库

C、数据分析

D、数据处理

答案

参考答案：A, B

改错题

1. The woman said the earth went round the sun.
2. Mr.Zhang asked us didn't to be late again.
3. The film has begun for three minutes.
4. How should I do with the chopsticks when I finish eating?
5. How long may I borrow the book?

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选择题

The research is so designed that once________nothing can be done to change it.

A．begins

B．having begun

C．beginning

D．begun