按照机械设备功能分类，机械压力机属于（）。

A.切削设备

B.铸造设备

C.锻压设备

D.起重设备

WebSQL is a SQL-like (26) language for extracting information from the weB. Its capabilities for performing navigation of web (27) make it a useful tool for automating several web-related tasks that require the systematic processing of either ail the links in a (28) , all the pages that can be reached from a given URL through (29) that match a pattern, or a combination of both. WebSQL also provides transparent access to index servers that can be queried via the Common (30) Interface.

A．Router

B．Device

C．Computer

D．Gateway