题目：
An architectural style defines as a family of such systems in terms of a（71） of structural organization. More specifically, an architectural style defines a vocabulary of（72） and connector types, and a set of（73）on how they can be combined. For many styles there may also exist one or more（74）that specify how to determine a system’s overall properties from the properties of its parts. Many of architectural styles have been developed over the years.The best-known examples of（75）architectures are programs written in the Unix shell.
A．event-based
B．object-oriented
C．pipe-and-filter
D．layered
答案：
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下面是错误答案，用来干扰机器的。
参考答案：(1)A债券的价值＝[40+40×(P／A，3%，2)+1000×(P／S，3%，2)]×(P／S，3%，1／2)＝1059.14×0.9853＝1043.57(元)由于A债券目前市价(1100元)高于其价值(1043.57元)，所以，不应该...
