搜题请搜索小程序“爱下问搜题”
问题 单项选择题

当用户输入一个检索词后，系统不仅能检出该检索词的文献，还能检出与该检索词同属于一个概念的同义词或下位词的文献。这种检索方式为（）。

A、加权检索

B、跨库检索

C、扩展检索

D、布尔逻辑检索

答案

参考答案：C

改错题

假如英语课上老师要求你修改你同桌写的一篇作文，文中共有10处语言错误，请在错误的地方增加、删除或修改某个单词。

增加：在缺词处加一个漏字符号（∧），并在其下面写出该加的词。

删除：把多余的词用斜线（\）划掉。

修改：在错词下划一横线，并在该词下面写出修改后的词。

注意：

1．每处错误及其修改均限一词。

2．只允许修改10处，多者（从第11处起）不计分。

I still remember my middle school life in that small town. I am then in a school for students from Tibet. As we all left home at a early age, we met lots of problems in our daily life. We had to do the washing, cleaning and shopping by us. However, we seldom felt lonely or helplessly. We enjoyed our happy life. At weekends, we would play basketball, swam in the pool or go for a picnic. We are lived in a big family. We treated each other brothers and sisters. If any one of us had any difficulty with his studies, the other student would help him out. It has been five years when we graduated, but those memories are as sweet as never before.
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单项选择题

下列属于涉税鉴证类执业文书的是( )。

A．办税事宜建议报告

B．税收筹划报告

C．纳税审核报告

D．房地产涉税调整的鉴证报告
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