首页/ 题库 / [单选题]数据库三级模式体系结构的划分的答案

数据库三级模式体系结构的划分,有利于保持数据库的()。

单选题
2021-07-17 23:12
A、<span style="FONT-FAMILY: 宋体; FONT-SIZE: 14pt; mso-ascii-font-family: ">数据安全性</span>
B、<span style="FONT-FAMILY: 宋体; FONT-SIZE: 14pt; mso-ascii-font-family: ">数据独立性</span>
C、<span style="FONT-FAMILY: 宋体; FONT-SIZE: 14pt; mso-ascii-font-family: ">数据并发性</span><span lang="EN-US" style="FONT-SIZE: 14pt"></span><p></p><p></p>
D、<span style="FONT-FAMILY: 宋体; FONT-SIZE: 14pt; mso-ascii-font-family: ">数据完整性</span>
查看答案

正确答案
B

试题解析

相关题目
boost的意思是:help or encourage to increase or improve
eloquent的意思是:fluent or persuasive in speaking or writing

Goods are carried by several        of transport--on road or rail, by sea or air.

A campus emergency ______ occur at any time of the day or night, weekend, or holiday, with little or no warning.

()any case or suspected case of quarantinable disease,or any case of eruptive disease or any death be discovered,the local quarantine officer must be notified immediately.
Should any case or suspected case of quarantinable disease,or any case of eruptive disease or any death be discovered,the local Quarantine Officer must be()immediately.
已知A=40;B=30;C=100;D=50,逻辑“与”运算符为and,“或”运算符为or,“非”运算符为not。计算表达式(A>B+20)or(B+60<>
设a=5,b=4,c=3,d=2,则表达式3>2*b Or a=c And b<>c Or c>d的值是
设a=5,b=4,c=3,d=2,则表达式3>2*b Or a=c And b<>c Or c>d的值是
Masters are()solely responsible for all damages or accidents of whatever kind resulting from the navigating or handling of their vessels by day or by night.
系统中雷达状态包括Unknown、Operational(or ON)、Failed(or OFF)、Detached。
The carrier is liable for loss of or damage to the goods or delay in delivery caused by fire,()the claimant proves that the fire arose from fault or neglect on the part of the carrier,his servants or agents.
Shutdown price(or point,or rule) 停业价格(或停业点、停业原则)
设a=2,b=3,c=4,d=5,表达式3>2*b or a=c and b<>c or c>d的值是( )
设a=5,b=4,c=3,d=2,则表达式3>2术b Or a=c And b<>c Or c>d的值是
设a=5,b=4,c=3,d=2,下列表达式的值是 3>2*b Or a=c And b<>C Or c>d
设a=5,b=4,c=3,d=2,则表达式3>2*b Or a=c And b<>c Or c>d的值是
设a=5,b=4,c=3,d=2,下列表达式的值是( )。 3>2*b Or a=c And b<>c Or c>d
设a=5,b=4,c=3,d=2下列表达式的值是 3>2*b Or a=c And b<>C Or c>d
设a=5,b=4,c=3,d=2,下列表达式的值是 3>2*b Or a=c And b<>c Or c>d
广告位招租WX:84302438

免费的网站请分享给朋友吧