一次函数的图象经过点（0，3），且与直线y=-2x+1平行，那么这个一次函数的解析式是______．

WebSQL is a SQL-like (71) language for extracting information from the web. Its capabilities for performing navigation of web (72) make it a useful tool for automating several web-related tasks that require the systematic processing of either all the links in a (73) , all the pages that can be reached from a given URL through (74) that match a pattern, or a combination of both. WebSQL also provides transparent access to index servers that can be queried via the Common (75) Interface.

A．paths

B．chips

C．tools

D．directories