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问题 单项选择题

根据GB17820-1999《天然气》规定，在天然气交接点的压力和温度条件下，水露点应该是（）烃露点应低于最低环境温度。

A.低于最低环境温度

B.等于最低环境温度

C.比最低环境温度低5℃

D.比最低环境温度低10℃

答案

参考答案：C

选择题

下列关于质量的说法中，正确的是（　　）

A．物理课本从地球带到月球，质量变小了

B．水结成冰后，体积变大了，但质量不变

C．把铁块加热后，锻压成铁片，质量变小了

D．1kg棉花与1 kg铁块的质量不相等
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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 (1) nearly impossible. With the model for collaborative work spreading, and with more users sharing (2) documents 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 (3) lifecycle. EDM systems manage this lifecycle from creation, revision, storage and (4) retrieval 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 (5) reengineering.

2（）

A．format

B．documents

C．text

D．network
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