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[单选题]（ ）不属于第三方电子支付工具。
A财付通
B诚信通
C安付通
D贝宝
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1.
以下不属于全文搜索引擎的是（ ）
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2.
As information systems are complex and multifaceted, failure (and success) can be manifested (表现，体现)in many ways. There are two important ways of looking at information systems that lead to different ( 1 ) of considering their success or failure.In the straightforward case, an information system can be considered as a project that is instigated, specified, designed and eventually implemented and maintained. It goes through a life cycle like the one described above. When big, high profile information system ( 2 ) fail, they attract significant amounts of publicity, especially if they are in the public sector, and their consequences are often dramatic and far-reaching.At another extreme, there are information systems that form sets of subsystems that work together to deliver an overall information system. The subsystems may be modified and updated, new items may be introduced and redundant ones removed. People may talk about this being a ( 3 ) information system, and it maybe criticized or deemed to be a ( 4 )，but neither it nor its predecessors need ever have been designed as a complete whole. Evolved information systems may develop slowly over a long period of time, sometimes changing imperceptibly (极微小地)and sometimes being the subject of fairly major modifications. Such systems can fail catastrophically (灾难性地)，but it is often the case that they ( 5 ) become unable to cope with the demands placed upon them until, if not modified, they reach a point where they start to cause serious harm to the activities they were designed to support.
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3.
一般来说，与测试数据无关的文档是( )。
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4.
关于UML的描述，不正确的是：（ ）。
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5.
关于风险识别的描述，不正确的是（ ）。
