以下关于数据模型的描述中,错误的是A) 数据模型表示的是数据库本身B) 数据模型表示

题型:单项选择题

问题:

以下关于数据模型的描述中,错误的是

A) 数据模型表示的是数据库本身
B) 数据模型表示的是数据库的框架
C) 数据模型是客观事物及其联系的描述
D) 数据模型能够以一定的结构形式表示出各种不同数据之间的联系

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
题型:单项选择题

Mr. Smith lives in Toronto. He is a doctor. His wife teaches English in a middle school. They have two children, one is a son called Mike and the other is a daughter. She is only three months. Mike loves the baby very much. He often shows her to the guests. He is young and doesn’t go to school. He stays at home to help his mother look after the baby.

One day Mike’s aunt comes to see the baby. She works in another city and sees the baby foe the first time. Mike shows the baby to his aunt.

“Look at the baby, Aunt;” says Mike, “She’s beautiful. I think she looks like me.”

“Does she like playing with you?” asks his aunt.

“I don’t know,” answers the boy, “She can’t speak yet.”

小题1:Mike is ____________.

A.an American

B.an Australian

C.an Englishman

D.a Canadian小题2:Ther’re __________ people in Mr Smith’s family.

A.two

B.four

C.five

D.three小题3:Mrs Smith is a __________.

A.doctor

B.worker

C.teacher

D.bookseller小题4:The baby is Mike’s __________.

A.younger cousin .

B.younger sister

C.younger brother

D.elder brother小题5:Little Mike thinks ___________.

A.he’s beautiful ,too.

B.the baby is nice .

C.his aunt is friendly to him .

D.he loves the baby best.

题型:单项选择题

许可进行工作的事项(包括工作票号码、工作任务、许可工作时间及完工时间)必须记在()的操作记录簿内。

A.专工

B.运行班长(或值长)

C.工作负责人

D.值长

题型:单项选择题

观果树木的园林养护栽培,关键要考虑从根本上提高营养贮藏水平。( )

题型:单项选择题

烤炉清洁剂和家用漂白剂的混合物会释放氯气,浴缸清洁剂和家用漂泊剂的混合物也会释放氯气。不过普通肥皂和家用漂白剂的混合物则不会释放任何气体,当把未经鉴定的清洗剂加到家用漂白剂中时,也没有氯气释放。
那么关于这种未知清洗剂,我们可以这样认为( )。

A.它是普通肥皂
B.既不是烤炉清洁剂,也不是浴缸清洁剂
C.它含有普通肥皂成分,以及烤炉清洁剂或浴缸清洁剂成分
D.它含有普通肥皂成分,但不含有烤炉清洁剂和浴缸清洁剂成分

题型:单项选择题

医疗机构对传染病病人或者疑似传染病病人应提供的措施是()

A.医疗救护

B.医学观察

C.减免医疗费用

D.强制医疗

E.医疗补助

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