简述Tag技术及其应用。

使用以下命令为表Student.dbf创建普通索引：USE StudentINDEX ON 出生年月 TAG CSNY若按索引标识名"CSNY"规定的顺序列出记录，应该使用命令（）。

A:SET ORDER TO CSNY B:SET TAG TO CSNY C:INDEX ON 出生年月 D:TAG ON 出生年月

HTML中用于指定超链接的tag是（）

A:a B:link C:hred D:hlink

VLAN TAG占用的字节数是（）字节；

S8016在以太网接口下配置tag-tosenable命令的作用是：（）

A:使能接口对802.1Q优先级的支持。 B:使能接口对802.1P优先级的支持。 C:在802.1Q中表示是否支持TAG的优先级功能。 D:在802.1P中表示是否支持VLANTAG的最后3bit表示的优先级。

关于TAG/UNTAG说法正确的是（）。

A:TAG/UNTAG/不属于，其实可以规为两类操作：属于和不属于 B:TAG/UNTAG的区别就是对用于转发的PVID字节的处理 C:配置TAG则从属于该VLAN的端口出去的包剥离该VID字节 D:UNTAG则保留该VID字节

5516GPON07BONU下挂PC应该将TAG模式配置为（），将CVLAN模式配置为（）。

A:UNTAG，TAG B:TAG，透传 C:TAG，翻译 D:透传，透传

Tag的正确用途？（）

A:用于搜索 B:透露结局的 C:人身攻击的 D:调戏的

Science has long had an uneasy relationship with other aspects of culture. Think of Gallileo’s 17th-century trial for his rebelling belief before the Catholic Church or poet William Blake’’s harsh remarks against the mechanistic worldview of Isaac Newton. The schism between science and the humanities has, if anything, deepened in this century. 　　Until recently, the scientific community was so powerful that it could afford to ignore its critics but no longer. As funding for science has declined, scientists have attacked "antiscience" in several books, notably Higher Superstition, by Paul R. Gross, a biologist at the University of Virginia, and Norman Levitt, a mathematician at Rutgers University; and The Demon-Haunted World, by Carl Sagan of Cornell University. 　　Defenders of science have also voiced their concerns at meetings such as" The Flight from Science and Reason," held in New York City in 1995,and "Science in the Age of (Mis) information, "which assembled last June near Buffalo. 　　Antiscience clearly means different things to different people. Gross and Levitt find fault primarily with sociologists, philosophers and other academics who have questioned science’’s objectivity. Sagan is more concerned with those who believe in ghosts, creationism and other phenomena that contradict the scientific worldview. 　　A survey of news stories in 1996 reveals that the antiscience tag has been attached to many other groups as well, from authorities who advocated the elimination of the last remaining stocks of smallpox virus to Republicans who advocated decreased funding for basic research. 　　Few would dispute that the term applies to the Unabomber, whose manifesto published in 1995, scorns science and longs for return to a pretechnological Utopia. But surely that does not mean environmentalists concerned about uncontrolled industrial growth are antiscience, as an essay in US News & World Report last May seemed to suggest. 　　The environmentalists, inevitably, respond to such critics. The true enemies of science, argues Paul Ehrtich of Stanford University, a pioneer of environmental studies, are those who question the evidence supporting global warming, the depletion of the ozone layer and other consequences of industrial　growth. 　　Indeed, some observers fear that the antiscience epithet is in danger of becoming meaningless. "The term ’’ antiscience’’ can lump together too many, quite different things, "notes Harvard University philosopher Gerald Holton in his 1993 work Science and Anti-Science. "They have in common only one thing that they tend to annoy or threaten those who regard themselves as more enlightened." Which of the following is true according to the passage ____________.

A:Environmentalists were blamed for antiscience in an essay. B:Politicians are not subject to the labeling of antiseienee. C:The "more enlightened" tend to tag others as antiseience. D:Tagging environmentalists as "antiseience" is justifiable.

HTML中用于指定超链接的tag是（）。

A:a B:1ink C:hred D:hlink