Visual Foxpro6.0是一种关系型数据库管理系统，所谓关系是指_______爱下问搜题

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问题单项选择题

Visual Foxpro6.0是一种关系型数据库管理系统，所谓关系是指______。

A．各条记录中的数据彼此有一定的关系

B．一个数据库文件与另一个数据库文件之间有一定的关系

C．数据模型符合满足一定条件的二维表格式

D．数据库中各个字段之间彼此有一定的关系

答案

参考答案：C

解析：[知识点] 关系数据库：关系模型，关系模式，关系，元组，属性，域，主关键字和外部关键字[评析] 关系指的是表之间的一种链接，它不仅能从当前选定表中访问数据，而且可以访问其他表中的数据。这种链接指的是连接条件。

选择题

____ the tower building,where you see the whole city.[ ]

A. Standing on the top of

B .If you climb to

C. When you reach the top of

D. Get to the top of

完形填空

完形填空（共20小题；每题1分，满分20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。
One day, a poor boy who was trying to pay his way through school by selling goods from door to door found that he only had one dime left. He was hungry so he decided to     21    for a meal at the next house.
However, he lost his nerve     22    a lovely young woman opened the door. Instead of a meal he asked for a drink of water. She thought he looked     23    so she brought him a large glass of milk. He drank it     24   , and then hesitatingly asked, “How much do I owe you?”
“You don’t owe me anything,” she     25   . “Mother has taught me never to accept pay for a __26  .” He said, “Then I thank you from the bottom of my heart.” As Howard Kelly left that house, he not only felt

stronger     27   , but it also increased his faith in God and human race. He was about to give up and quit before this point.
Years later the young woman became critically ill. The local doctors were baffled. They finally sent her to the big city, where specialists can be called     28    to study her rare disease. Dr. Howard Kelly, now     29    , was called in for the consultation. When he heard the name of the town she came from, a strange light    30    his eyes. Immediately, he     31    and went down through the hospital hall into her room.
    32  in his doctor’s gown he went in to see her. He     33   her at once. He went back to the consultation room and     34    to do his best to save her life. From that day on, he gave    35__attention to her case.
After a long     36   the battle was won. Dr. Kelly    37    the business office to pass the final bill to him for approval. He looked at it and then wrote something on the side. The bill was sent to her room. She was afraid to open it because she was     38    that it would take the rest of her life to pay it off. Finally she looked, and the note on the side of the bill caught her     39 . She read thesewords…
“Paid in full with a glass of milk.”
(Signed) Dr. Howard Kelly
Tears of joy flooded her eyes as she    40    silently. “Thank you, God. Your love has spread through human hearts and hands.”

B．unexpectedly

D．concentrated

B．preparation

A．presentation

D．arrangement