搜题请搜索小程序“爱下问搜题”
问题 单项选择题

《消费者权益保护法》体现的核心原则为______。

A．经营者保护消费者的合法权益不受侵犯

B．国 * * 护消费者的合法权益不受侵犯

C．全社会保护消费者的合法权益不受侵害

D．消费者保护自身的合法权益不受侵害

答案

参考答案：B

单项选择题

在Excel 2003中，______用于汇总和分析表格中的数据。

A．数据透视表

B．数据页表

C．数据表

D．数据分析表
查看答案
单项选择题

In the following essay, each blank has four choices. Choose the best answer and write down on the answer sheet.

It is more and more usual that users of Information Retrieval (IR) systems must face up to response of hundreds or thousands of (1) documents. A significant proportion of them are moreover (2) or redundant. This is a straight consequence of two well - known facts: the incessant growing of documental databases and the lack of ability of most users to define (3) information needs. In such a framework, further effective retrieval techniques are only part of the solution. Interfaces with alternative ways for organizing and (4) the results returned by a (5) would be of great utility assisting users to find relevant documents. Document clustering may play a central role as an effective technique for organizing query results.

4（）

A．seeing

B．searching

C．browsing

D．looking for
查看答案