A perfectly practicable 1930s technology, but you can already see the downsides.
Plagiarism: This feature helps you detect if a text has been plagiarized by comparing it with over eight billion web pages.
，更多细节参见safew官方下载
First FT: the day’s biggest stories。业内人士推荐Line官方版本下载作为进阶阅读
return (PAGESZ - sizeof(struct page_info)) / sizes[classno];