问题 单项选择题

在数据库系统中,实现各种数据管理功能的核心软件称为______。

答案

参考答案:数据库管理系统

解析: 数据库管理系统是位于用户和操作系统之间的一层数据管理软件,用于描述、管理和维护数据库的程序系统,它建立在操作系统的基础上,对数据库进行统一的管理和控制,其功能随系统而异。它是一种系统软件,负责数据库中的数据组织、数据操纵、数据维护、控制及保护和数据服务等。数据库管理系统是数据库系统的核心。

阅读理解

Lots of students shop to reduce stress or just to kill time with their friends. Shopping to get rid of boredom or to escape from life’s pressures may lead to serious problems. When you start to shop out of control, you become a shopping addict.

Shopping addicts show signs that are similar to other addicts. Some students think that shopping, even as little as buying gifts for classmates, can make them feel better and forget their problems. Actually, it can make them feel worse, guilty, or even cause them to run into financial difficulties. Finding yourself in a financial struggle or deep in debt may harm your relationships with friends and parents.

Do you go shopping for just a few things and come home with your wallet empty? Do you always go shopping after an emotional trauma or when life feels tough(艰难的)? Do you regret later what you buy? Or do you buy things that you never use? Maybe your parents or friends have expressed disagreement that leads you to hide items or lie about prices.

Avoid any environment that may make you want to spend money. Never use credit cards. Form some other meaningful and beneficial hobbies. Exercise, yoga and hot baths generally may help you not want to shop. Take a drive through the country where there aren’t any stores. Have patience with yourself and your money, which can benefit you for the rest of your life.

60. According to the passage, shopping addicts ______.

are always rich people             B. get well along with friends

C. may suffer financial difficulties      D. all the above

61. The third paragraph mainly tells about ______.

ways to get rid of shopping addiction

the signs of shopping addicts

the danger of shopping addiction

why shopping addicts can’t stop shopping

62. The underlined word “trauma” probably means “______”.

hurt       B. satisfaction      C. enjoyment    D. appreciation

63. The intended readers of the passage are ______.

teachers       B. doctors      C. students     D. education

问答题 简答题