在数据库中,产生数据不一致的根本原因是A.数据存储量太大 B.没有严格保护数据 C.

题型:单项选择题

问题:

在数据库中,产生数据不一致的根本原因是

A.数据存储量太大

B.没有严格保护数据

C.未对数据进行完整性控制

D.数据冗余

考点:计算机等级考试数据库技术三级数据库技术笔试8
题型:单项选择题

在市场经济条件下,市场配置资源的核心机制是( )。

A.利益机制

B.供求机制

C.价格机制

D.竞争机制

题型:单项选择题

某同学到超市购买了一条带鱼和一包紫菜,其产地可能是(  )

A.四川

B.重庆

C.安徽

D.浙江

题型:单项选择题

With your workload growing, you may be telling yourself a vacation is one luxury you can’t afford.  小题1: A vacation allows you the opportunity to recharge your physical and motional batteries, disconnect from everyday concerns, and return to work rested and refreshed. Some facts have proved employees are more productive after a vacation than before one. Here are some tips for you to plan your vacation to make sure that your time away from the office is worry free.

Time is right. A Robert Half survey shows that July and August are the most favorable months for employees to take a break because these months offer ideal beach weather and many businesses slow down during this time.  小题2: For instance, if a big task is planned for the summer, you may consider postponing your trip until the fall.

Ask others for assistance.  小题3: Your supervisor can help you determine who is the most qualified for a particular task.

Let your contacts know. Give colleagues and customers you frequently work with a few weeks’ notice before you start off.  小题4:

Conduct a technical review. Before you leave, make sure there is plenty of room in your e-mail inbox so you don’t exceed (超越) your storage limit while you’re out of the office, which might prevent you from sending messages when you return.  小题5:

In short, taking vacation is necessary and beneficial for your job. But you must plan your vacation properly in order to work free and worry free on holiday.

A.Ask trusted colleagues to handle your projects while you’re away.

B.A summertime beach vacation includes so much more than what you desire these days.

C.But the truth is that you can’t afford not to take one.

D.This will give them enough time to plan for your absence.E. Also make sure passwords won’t expire(期满) while you are away.

F. What’s more, find your pet a temporary home when you are on vacation.

G. When planning your vacation, remember to take into account any activity that your department will be focused on during that time.

题型:单项选择题

根据《集会游行示威法》的规定,主管机关接到集会、游行、示威的申请书后,应当在申请举行日期的( )日前,将许可或不许可的决定书面通知其负责人。

A.3日

B.2日

C.4日

D.5日

题型:单项选择题

某施工单位在异地设有分公司,分公司受其委托与材料供应商订立了采购合同。材料交货后还款未支付,供应商应以( )为被告人向人民法院起诉,要求支付材料款。

A.监理单位
B.分公司
C.建设单位
D.施工企业

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