题目内容

The work of Web crawling or spidering is the essential part of a search engine.

A. 对
B. 错

查看答案

搜索结果不匹配？点我反馈

更多问题

Web crawlers copy all the visited pages for the search engine to index.

A. 对
B. 错

Crawlers can prevent some engines from harvesting email addresses.

A. 对
B. 错

The seed URLs are the crawl frontier.

A. 对
B. 错

The crawl frontier includes the seed URLs and all their hyperlinks.

A. 对
B. 错