下列叙述中正确的是______。A.一个逻辑数据结构只能有一种存储结构 B.数据的逻

题型:单项选择题

问题:

下列叙述中正确的是______。

A.一个逻辑数据结构只能有一种存储结构

B.数据的逻辑结构属于线性结构,存储结构属于非线性结构

C.一个逻辑数据结构可以有多种存储结构,且各种存储结构不影响数据处理的效率

D.一个逻辑数据结构可以有多种存储结构,且各种存储结构影响数据处理的效率

考点:计算机等级考试VISUALFOXPRO二级VISUALFOXPRO笔试
题型:单项选择题

One bitterly cold day,a snowstorm blew into our area. Needing firewood,I quickly set out with my best friend,Bruce,to look for a tree to cut down. I was glad to have Bruce along with. Cutting down a tree in a snowstorm can be dangerous. So it was important to have a friend who could warn me of danger.

When I chose a big tree about 23 meters tall and prepared to cut it down,my best friend suddenly warned me,“Don’t cut down that tree!It’s too close to the power line!”I wasn’t sure about it. So I decided to disregard his warning. I wanted to finish the job quickly and go home. So I began cutting down the tree. When the tree fell,there was no longer any doubt that my friend was right.

The tree caught the power line,bringing it to the ground. I considered cutting the tree off the line. After all,electricity can’t travel through wood,so I could safely remove the tree. As I reached out my finger to touch the tree,pain ran up my arm and through my head. I was shocked!

After I returned home and told my mother what had happened,she quickly called the power company. The workers from the power company soon arrived on the scene. One of them asked if I had touched the tree,and when I told him I had,his face turned pale.

“You should have been killed,” he said.

So why am I still alive?It was my boots that saved my life.

Within two hours,the workers removed the tree. Soon the snowstorm calmed down—but not my mother.

Even though she was glad I wasn’t hurt,my mother was still serious. After all,I shouldn’t have brushed off my friend’s warning.

Through this experience,I learn it’s important to listen to people who offer a different perspective.  time to listen might actually save a lot of time and trouble. It certainly would have kept me from getting the “shock” of my life.

小题1:The underlined word “disregard” in the second paragraph means “________”.

A.pay no attention to

B.take notice of

C.consider

D.follow小题2:In spite of Bruce’s warning,the author still cut down the tree because________.

A.he was sure there would be nothing to happen

B.he wasn’t sure if Bruce was right and was anxious to go home

C.he didn’t hear his friend’s warning at all because of the blowing wind

D.he knew electricity can’t travel through wood小题3:The underlined part “the snowstorm calmed down—but not my mother” means “________”.

A.my mother was still angry with me for not listening to my friend’s warning

B.my mother was still in fear of the terrible accident

C.my mother was still comforting me

D.my mother was still worried about my safety小题4:The author wrote the passage mainly to________.

A.give an account of one of his terrible experiences

B.make us know it’s important to listen to people who offer a different perspective through his experience

C.tell us not to cut trees down any more

D.remind us to be careful while we are working

题型:单项选择题

施工总承包管理模式与施工总承包模式相比,在合同价方面的优点有()。

A.在施工总承包管理模式下,分包合同价对业主是透明的

B.在施工总承包模式下,分包合同价对业主是透明的

C.所有分包都通过招标获得有竞争力的投标报价,对业主方节约投资有利

D.某一部分施工图设计完成以后,再进行该部分施工招标,确定该部分合同价,因此整个建设项目的合同总额的确定较有依据

E.合同总价不是一次确定

题型:单项选择题

低盐、无盐、低钠膳食有何不同?

题型:单项选择题

施工安全“三宝”不包括()。

A.安全帽

B.安全带

C.安全网

D.安全手册

题型:单项选择题

商业物业的良好形象是潜在的销售额。

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