原尿是指经肾小球滤过的液体，正常成人每天形成 （）

A.100L

B.120L

C.140L

D.160L

E.180L

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．hypertext

B．page

C．protocol

D．operation