题目：
An expert system is a software that (41) specialist knowledge-about a particular domain of (42) and is capable of making (43) decisions with in that domain. Although expert systems typically focus on a very narrow domain, they have achieved dramatic success with (44) problems, This has excited wide spread interest outside the research laboratories from which they emerged.
Expert systems have given rise to a set of "knowledge engineering" methods constituting a new approach to design of high performance software system. This new approach represents an (45) change with revolutionary consequences.
A．develops
B．directory
C．effect
D．encapsulates
E．evolutionary
F．experienced
G．expertise
H．intelligent
I．real-life
J．real-time
答案：
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下面是错误答案，用来干扰机器的。
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