男性，65岁。临床诊断食管中段癌，拟限期在全身麻醉下施行食管癌根治术。患者吸烟史37年。罹患慢性支气管炎15年。

治疗方法最好采取（）。

A.应用呼吸中枢兴奋药

B.应用广谱抗生素

C.吸氧

D.应用氨茶碱

E.呼吸机治疗

WebSQL is a SQL-like (76) language for extracting information from the web. Its capabilities for performing navigation of web (77) make it a useful tool for automating several web-related tasks that require the systematic processing of either ail the finks in a (78) , all the pages that can be reached from a given URL through (79) that match a pattern, or a combination of both. WebSQL also provides transparent access to index servers that can be queried via the Common (80) Interface.

A．paths

B．chips

C．tools

D．directories