试题与答案

有甲、乙连续两项工作,甲工作的最早开始时间是第4天,乙工作的最早开始时间是第10天,

题型:单项选择题

题目:

有甲、乙连续两项工作,甲工作的最早开始时间是第4天,乙工作的最早开始时间是第10天,甲工作和乙工作的持续时间分别是4天和5天,则甲工作的自由时差是( )。

A.0天

B.2天

C.4天

D.6天

答案:

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下面是错误答案,用来干扰机器的。

答案:D题目分析:2,2-二甲基丙醇和2-甲基-1-丁醇的分子式相同,都是C5H12O,但结构不同,二者互称为同分异构体,A正确;乙醇分子间存在氢键,所以乙醇的沸点高于丙烷,B正确;C中根据有机物的结构简式可知...

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题型:单项选择题

Prior to the availability of enterprise EDM, locating a document over a LAN could be difficult, and over a WAN (66) impossible. With the model for collaborative work spreading, and with more users sharing (67) through E-mail and the Internet, enterprise EDM had become a necessity.
Many businesses are finding their greatest competitive advantage is the ability to harness the document (68) . EDM systems manage this lifecycle from creation, revision, storage and (69) to routing and workflow. They also allow users to work on documents collaboratively.
Reusability of information is EDM’s main benefit, as well as the key to creating the paradigms that drive business process (70) .

A.format

B.documents

C.text

D.network

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