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问题 选择题

2009年，由2008年次贷危机引发的美国金融危机仍然影响全球经济的发展各国中央银行纷纷采取降息等诸多举措以图提振金融市场信心，促进经济稳定健康发展。中央银行降息

①会提高居民的储蓄的积极性，从而增强应对金融危机的信心

②可有效降低企业用资成本，促使企业扩大生产投资

③是推动经济发展的有效途径 

④有利于扩大内需，增强经济活力

A．①②③

B．②③④

C．①②④

D．①③④

答案

答案：B

单项选择题

为避免放射免疫分析所使用的计数器受到外来放射性物质的污染而影响所分析的结果，所以每日应执行下列哪项工作（）

A.检测计数器的背景值

B.检测器的保养擦拭

C.校正计数器计数效率

D.对计数器执行擦拭实验

E.对作业环境进行辐射侦测
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单项选择题

SOX is an alternative (156) for XML. It is useful for reading and creating XML content in a (157) 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 (158) have not reached a point where their tree views, tables and forms can completely substitute for the underlying (159) language. This is not surprising when one considers that developers still use a text view, albeit enhanced, for editing other languages such as Java. SOX uses (160) 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.

（160）是（）

A.indenting

B.structure

C.framework

D.bracket
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