试题与答案

在以下四项中哪项不是按照接触网的支柱用途分类的() A.混凝土支柱和钢柱 B.中间柱

题型:单项选择题

题目:

在以下四项中哪项不是按照接触网的支柱用途分类的()

A.混凝土支柱和钢柱

B.中间柱、转换支柱

C.道岔柱、锚柱

D.软横跨、硬横跨支柱

答案:

参考答案:A

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题型:单项选择题

One of the functions of the (71) is to store the applications programs or the various secondaries. The (72) may have similar or dissimilar functions. The same control code received from two different, secondaries may warrant two different actions on the part of the host computer. If the system so requires, the host computer must also provide (73) for the centralized data and the software for database management. Data information is normally stored in auxiliary memories to which the computer has ready access. The (74) peripherals connected to the host computer allow for human entry and intervention. As needs change, application programs may require additions, deletions, or changes. Data link problems also arise which are (75) the range of the computer’s programmed capabilities. In such cases, human entry is required to make the necessary changes to resolve the existing problems.

A.storage

B.data

C.range

D.link

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