下列条目中哪些属于数据库管理工具 Ⅰ.加载工具 Ⅱ.备份工具 Ⅲ.CASE工具

题型:单项选择题

问题:

下列条目中哪些属于数据库管理工具


Ⅰ.加载工具 Ⅱ.备份工具


Ⅲ.CASE工具 Ⅳ.通讯接口工具

A.只有Ⅰ和Ⅱ

B.只有Ⅰ、Ⅱ和Ⅲ

C.只有Ⅰ、Ⅱ和Ⅳ

D.都是

考点:计算机等级考试数据库技术三级数据库技术笔试
题型:单项选择题

In a cab, a woman seemed in such a hurry.She constantly rushed the cab driver to drive quickly.She was so absorbed in her own thoughts of getting to the airport as soon as possible that she was not aware they were going by a different route.

All of a sudden, a young man got inside the cab.He took her handbag in which she had put her visa, passport, and all the money for the trip.

The cab driver, who was in collusion with the robber, left her in the exactly middle of a dark street.She thought that she was rather unfortunate in the very situation.

During the very night, she was told a piece of shocking news.Tears came down her cheek.Flight 360, the plane that she should have got on board, had crashed.Had she not lost her important belongings, she could surely have lost the thing far more precious——her life.

Sometimes bad things really happen.There are times when nothing seems to go our way.So what should we do about it? We must get rid of all these frustrations and start all over again in the faith that we will get what we deserve.

Don’t waste your time and energy on things that can’t be changed.Continuous worrying will only affect your health and you’ll be doing much more damage than what was previously done.

What if it was the other way round? What if we never ran out of good luck?

There was a man who won the lottery.He became greedy and wasted all his money on everything he could get his hands on.

But when he one day made it to the front page of the newspaper again, it was a different story.He had been killed because of his riches.If you attain good luck, you can never be too secure about it.Life is so unpredictable.You never know what will happen next.

Live one day at a time.We sometimes subject ourselves to unnecessary emotional trouble.But please don’t forget: sometimes misfortune can be the source of happiness.Live for the moment.Do what must be done for the present and the future will turn out just fine.Believe me.And believe in yourself.As Captain Planet always says, “The power is yours!”

小题1:The underlined phrase “in collusion with” in Paragraph 3 probably means “________.”

A.was forced by

B.was fighting bravely against

C.was doing one’s best to beg

D.had cooperated with小题2:From the passage, we learn that ________.

A.robbers are sure to get what they want

B.somebody never runs out of good luck

C.the woman was lucky to miss her flight

D.if one feels oneself lucky, he or she will continue to be so小题3:The writer presents the second example in order to ________.

A.warn people of the danger of winning the lottery

B.tell people life is unpredictable

C.encourage people to buy lottery

D.persuade people not to be greedy小题4:According to the author, which of the following choices is the correct attitude to adopt to life?

A.Never waste any time or energy because time is so limited.

B.One needn’t be worried or feel frustrated.Believe in yourself.

C.Even while everything appears to be going smoothly, we should keep fully alert.

D.Worrying about what you don’t have小题5:The passage above is intended to tell us ________.

A.misfortune sometimes is a blessing

B.we should save up for a rainy day

C.fortune just goes with those prepared minds

D.both losses and gains go hand in hand

题型:单项选择题

实现安全管理的方法是();()、安全性强度测试、安全性审计支持。

题型:单项选择题

下列各项中,按照有关规定可以免缴城镇土地使用税的土地是( )。

A.房租调整改革后,房产管理部门经租的居民住房用地

B.坐落在城市郊区的经贸仓库

C.热力生产企业占地

D.向居民供热并向居民收取采暖费的供热企业办公用地

题型:单项选择题

临床上龋齿按病变进展情况分为

A.慢性龋

B.急性龋

C.静止龋

D.继发龋

E.深龋

题型:单项选择题

如果一个公司有2000台主机,为了使该公司网络在路由表中只占一行,指定给它的子网掩码应该是()。

A.255.192.0.0

B.255.240.0.0

C.255.255.240.0

D.255.255.248.0

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