【单选题】【消耗次数：1】
( )是一种用于限定提问关键词在数据库记录中出现的区域，控制检索结果的相关性，提高检索效果的检索方法。
①
位置检索
②
逻辑检索
③
字段检索
④
截词检索
参考答案：
复制
纠错
相关题目
随机题目
【单选题】
China hosted the Olympic Games in 2008, thus _____ her dream to be recognized as one of the greatest nations in the world.
①
having realized
②
realizing
③
realized
④
to realize
【单选题】
Man is superior to animals ______ he uses language to convey his thoughts.
①
that
②
in that
③
when
④
in which
【单选题】
If it _____ for his help, I wouldn’t be a university student now.
①
hasn’t been
②
hadn’t been
③
wasn’t
④
weren’t
【单选题】
The conference _____ next year will be an important event in the history of the country.
①
having been held
②
being held
③
to be held
④
held
【单选题】
Have a word with the manager ______ if he’s willing to reduce the price.
①
and to see
②
and see
③
and seeing
④
so to see
【单选题】
It is from the earliest times ______ men have studied the world around them with interest.
①
which
②
where
③
how
④
that
【单选题】
幻灯片放映时，使光标变成“激光笔”效果，_______。
①
按Ctrl+F5
②
按Shift+F5
③
按住Ctrl键的同时，按住鼠标的左键
④
执行“幻灯片放映”→“自定义放映”命令
【单选题】
在Word的编辑状态下，连续进行了两次“插入”操作，当单击一次“撤消”按钮后______。
①
将两次插入的内容全部取消
②
将第一次插入的内容全部取消
③
将第二次插入的内容全部取消
④
两次插入的内容都不被取消