数据流程图描述数据在信息系统中流动和被处理变换的过程,它是以图式的方法来表示 (

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问题:

数据流程图描述数据在信息系统中流动和被处理变换的过程,它是以图式的方法来表示 ( )。

A.软件模型

B.软件功能

C.软件结构

D.软件加工

考点:计算机等级考试信息管理技术三级信息管理技术笔试313
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原料泵全坏引起最直接的后果是()液面快速上涨。

A、脱丙烷塔塔底

B、原料缓冲罐

C、丙烯塔底

D、碳四塔回流罐

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It was a winter morning, just a couple of weeks before Christmas 2005. While most people were warming up their ears, Trevor, my husband, had to get up early to ride his bike four kilometers away from home to work. On arrival, he parked his bike outside the back door as he usually does. After putting in 10 hours of labor, he returned to find his bike gone.

The bike, a black Kona 18 speed, was our only transport. Trevor used it to get to work, putting in 60-hour weeks to support his young family. And the bike was also used to get groceries (食品杂货) saving us from having to walk long distances from where we live.

I was so sad that someone would steal our bike that I wrote to the newspaper and told them our story. Shortly after that,several people in our area offered to help. One wonderful stranger even bought a bike, then called my husband to pick it up. Once again my husband had a way to get to and from his job. It really is an honor that a complete stranger would go out of their way for someone they have never met before.

People say that a smile can be passed from one person to another, but acts of kindness from strangers are even more so. This experience has had a spreading effect in our lives because it strengthened our faith in humanity (人性) as a whole. And it has influenced (影响) us to be more mindful of ways we, too, can share with others. No matter how or how small, an act of kindness shows that someone cares. And the results can be everlasting.

小题1:Why was the bike so important to the couple?

A.The man’s job was bike racing.

B.It was their only possession.

C.It was a nice Kona 18 speed.

D.They used it for work and daily life小题2:We can infer from the text that ________

A.The couple worked 60 hours a week

B.people were busy before Christmas

C.the stranger brought over the bike

D.life was hard for the young family小题3:How did people get to know the couple’s problem?

A.From radio broadcasts.

B.From a newspaper.

C.From TV news.

D.From a stranger.小题4:What does the couple learn from their experience?

A.Strangers are usually of little help.

B.One should take care of their bike.

C.News reports make people famous.

D.An act of kindness can mean a lot.

题型:单项选择题

下列说法中不正确的是()

A.国家标准对标准件的画法作了简化和规定

B.国家标准对常用零件的结构形状、规格等作了具体规定

C.销和键都是标准件

D.国家标准对齿轮、弹簧等常用零件的一些常见结构和重要参数作了规定

题型:单项选择题

读下图,乙图为地壳物质循环示意图。图中①②③④表示地质作用,下列叙述正确的是()

 

 

A.大理岩属于甲类岩石

B.乙、丙类岩石中常含有化石

C.①表示板块的碰撞挤压

D.②③④均属于内力

题型:单项选择题

下列属于学术论文特点的是()。

A.科学性;

B.简介性;

C.具体性;

D.鲜明性。

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