下列关于数据的存储结构的叙述中,正确的是( )。A.数据的存储结构是数据间关系的抽

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问题:

下列关于数据的存储结构的叙述中,正确的是( )。

A.数据的存储结构是数据间关系的抽象描述

B.数据的存储结构是逻辑结构在计算机存储器中的实现

C.数据的存储结构分为线性结构和非线性结构

D.数据的存储结构对数据运算的具体实现没有影响

考点:计算机等级考试数据库技术三级数据库技术笔试
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阅读短文,判断正误。正确的写“T”,错误的写“F”。

     "Tell me what are you going to do on Sunday morning, Jim ," Mr.Wang asks." I'm going to see a

new film. It's an English film about the life of the students in America. Bill tells me it's very interesting."

     "After seeing the film, what are you going to do?" Mr. Wang wants to know."I'm going to read

Chinese," Jim says."Do you like it?" asks Mr. Wang."Chinese is not easy for me, but I like it very much.

I am going to work hard at it. After lunch I'm going to have English and other subjects (科目). I think I

can do better than before."

     "Then, what about Sunday evening?" Mr. Wang asks."After supper I'm going to help Han Meimei

with her English. She wants my help," Jim says.

     "You are going to have a busy day, aren't you?" says Mr. Wang.

( )1. Jim's father wants to know what Jim is going to do next Sunday.

( )2. Jim is going t o see an Engl ish film on Sunday morning.      

( )3. The film is about the life of American farmers.                

( )4. Jim thinks Chinese is easy for him.                            

( )5. Han Meimei wants Jim to help her with her Chinese.            

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如左图所示的四块玻璃制成的透镜中,属于凹透镜的是______.对透过的光线有会聚作用的透镜是______(写字母).

右图是某同学把凸透镜正对着太阳光,在桌面上得到一个亮点F,并用直尺进行测量的情况,则凸透镜的焦距是______cm.

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王老师在网上购得《听风者》电影票三张。王老师的经济活动属于社会再生产中的 

A.生产环节

B.分配环节

C.消费环节

D.交换环节

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淀粉在消化道中最终被分解成[ ]

A.葡萄糖

B.二氧化碳和水

C.麦芽糖

D.氨基酸

题型:单项选择题

依次填入划横线部分最恰当的一项是( )。
①北京的两位地理学教授都在同信中______他执著追求,并向他介绍了一些考研书目和学习方法。
②这位母亲同时告诉了我们那个时代的人情物意,在现今物欲横流的功利化时代,一股久违的感觉______:这正是我们今天所千呼万唤的世间真情!

A.勉力 情不自禁
B.勉力 戛然而止
C.勉励 自然而然
D.勉励 油然而生

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