下述有关主题数据库的论述，正确的是A．主题数据库依赖于具体的_爱下问搜题

搜题请搜索小程序“爱下问搜题”

问题单项选择题

下述有关主题数据库的论述，正确的是

A．主题数据库依赖于具体的应用

B．主题数据库会增加数据的冗余

C．主题数据库独立于具体的应用

D．主题数据库由文件系统组成

答案

参考答案：C

解析：主题数据库的逻辑结构独立于当前的计算机硬件和软件的物理实现过程，这样能保持在技术不断进步的情况下，主题数据库的逻辑结构仍然有效。主题数据库的建立基本上独立于具体应用，数据的设计和存储独立于它们的应用功能。

单项选择题

Krukenberg瘤的本质是()

A．直肠腺癌

B．胃黏液癌

C．卵巢癌

D．乳腺癌

E．肾细胞癌

完形填空

完形填空(共20小题；每小题1.5分，满分30分)
阅读下面短文，从短文后各题所给的四个选项(A、B、C和D)中，选出可以填入空白处的最佳选项。
The future belongs to those who believe in the beauty of their dreams. ------ Eleanor Roosevelt
My home is a place of great beauty and agricultural richness, as well as of war and natural disasters. When I was only fourteen years old, I was filled with __36__ in spite of the terrible surroundings. The families living here, who tried to make their living from the land, __37__ great losses.
For the __38__ I felt sorry especially, but I __39__ to be hopeless. I decided that where I was, I could do __40__ to help them. I began knocking on every door and saying to each person who __41__ my knock, “I know that you are __42__ and give the birds that come to your yard a little __43__. Please consider me your bird. Give me only a handful of rice each week when I come to your __44__. I will take it to the temple where it can be given to the __45__ children.”
No one seemed to __46__ giving me a handful of rice, even __47__ they had little themselves. On Sunday, I would go to the __48__ and give my handfuls of rice to the monks to __49__ to the children.
One day, I came to a house that had __50__ to give. I told my story and asked if I could be their bird. The woman called her daughters, and __51__ gave me fifty cents, as well as the handful of rice! I began to ask for __52__ and rice from the other “bird feeders”, and they gave them to me. Everyone was happy to be helping those who were suffering, even __53__ only this small way. The temple was soon able to help everyone who came to it for food and clothing.
“Consider me your bird.” My __54__ idea had not stopped the war, but anyway, it was __55__ some peace.