取某一巴比妥类药物约0．2g，加氢氧化钠试液5ml，与醋酸铅试液2ml，即生成白色沉淀加热后沉淀变为黑色，该药物应为（）

A.异戊巴比妥

B.苯巴比妥钠

C.司可巴比妥钠

D.硫喷妥钠

E.苯妥英钠

SOX is an alternative syntax for (71) . It is useful for reading and creating XML content in a text editor. It is then easily transformed into proper XML. SOX was created because developers can spend a great deal of time with raw XML. For many of us, the popular XML (72) have not reached a point where their tree views, tables and forms can completely substitute for the underlying. (73) language. This is not surprising when one considers that developers still use a (74) view, albeit enhanced, for editing other languages such as Java. SOX uses (75) to represent the structure of an XML document, which eliminates the need for closing tags and a number of quoting devices. The result is surprisingly clear.

A．markup

B．command

C．programming

D．interactive