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问题 单项选择题

主机吊缸时，对大型超长冲程的气缸套，用说明书规定的专用工具和起吊方法，缸套从缸内拔出后，有时会出现机舱空间的高度不够，不能被顺利吊走。此时挡住缸套的是（），应对措施可以是（）。

A.该缸的缸头螺栓/拆掉该缸部分缸头螺栓

B.相邻缸的缸头螺栓/拆掉部分缸头螺栓

C.排气侧的管件/拆掉相应的管件

D.该缸的缸头螺栓/拆掉该缸全部缸头螺栓

答案

参考答案：D

单项选择题

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
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单项选择题

在分期收款销售方式下，根据实质重于形式原则，下列各项中，属于企业确认收入的时点是( )。

A．提供分期收款商品时
B．合同约定的分期收款日
C．发出商品满足确认条件时
D．合同约定的最后一次付款日
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