首页
普通专升本
成人高考
学位英语
在线刷题
最近学习
最近学习课程
最强大脑 · 3天挑战极限记...
副标题副标题副标题副
最强大脑 · 3天挑战极限记...
副标题副标题副标题副
您现在位置：
模拟考场
>
湖北自学考试
>
专业课
>
数据库系统原理
>
浏览试题
[单选题]
在SQL Server 2000提供的服务中，管理SQL Server周期性行为的安排，并在发生错误时通知系统管理员的服务是
A
MS SQL Server
B
SQL Server Agent
C
Microsoft Server Service
D
MS DTC
收藏
查看答案
参考答案
试题答案：
B
答案解释：
相关题目
设有关系模式R(A，B，C，D)，F是R上成立的FD集，F={B A，B D}，则R的候选键是_________。
10．设某数据库中有学生表(学号，姓名，专业)，若要把“01、张璐、计算机”插入学生表中，则下列语句正确的是
在数据库恢复中，下列说法正确的是（）
国际标准化组织ISO发布的SQL语言标准SQL99习惯上被称为____________。
数据库的最小存取单位是( )
27．使用关系代数查询会员的会员名和联系电话。
下列模型中，广泛采用ER模型设计方法的是( )
关系数据库设计中，设计关系模式的任务属于（）
关系演算可以分为元组关系演算和_____________关系演算。
关系规范化中的删除操作异常是指（）
热门试题
1.
依次填入句中横线上的关联词语，恰当的一项是（ ）
2.
简述专利权人的主要权利。
3.
中国对香港恢复行使主权，中华人民共和国香港特别行政区正式成立是在（ ）
4.
21. The sun sends out huge amounts of energy, not only to Earth, but to all other planets in the solar system and directly into space. The source of all that energy is nuclear fusion (核聚变) occurring at the sun’s core. The Large Helical Device being developed at the Ministry of Educational Institute for Fusion Science (NIFS) is essentially an “artificial sun” that aims to reproduce this nuclear fusion on Earth. “Nuclear fusion is a reaction in which nuclei of light atoms such as hydrogen combine to form nuclei of heavier atoms such as helium (氦). If we can utilize the huge amounts of energy released by this reaction, nuclear fusion will then constitute a completely new, clean and never ending source of energy,” says NIFS Director Atsui Iiyoshl. In many respects, fusion is far superior to the various conventional energy sources currently in use. Fusion seems to have tremendous potential as a new source of energy. But to produce fusion reactions on Earth, it is necessary to meet a set of critical plasmatic (等离子区) conditions, including ultra-high temperatures of 100 million degrees or so centigrade - a state that refuses to imagine. To meet this challenge, Japanese scientists have come up with their own unique helical device that is particularly safe and is suitable for continuous operation. The large Helical Device now being developed is expected to be completed by the end of next year, with experiments scheduled to start at the beginning of 1998.(10分)21.1 The phrase “artificial sun” in the first paragraph probably means “________”.(2分)A. a man-made sun B. NIFSC. the sun’s energyD. fusion science
5.
简述知觉的特征。
热门试卷
成人高考专升本《政治》模拟试卷
去做题
已有3418做题
2020年湖北成人高考专升本政治模拟试题三
去做题
已有2214做题
成人高考专升本政治考试模拟试题及答案(1)
去做题
已有1901做题
湖北成考专升本政治真题（2021年）
去做题
已有1366做题
湖北成考高起点语文真题（2021年）
去做题
已有1233做题
