【单选题】【消耗次数：1】
在数据库中，数据独立性是指（ ）。
①
用户与数据分离
②
用户与程序分离
③
程序与数据分离
④
人员与设备分离
参考答案：
复制
纠错
相关题目
【单选题】
数据库系统中，物理数据独立性是指（ ）。
①
A.数据库与数据库管理系统的相互独立
②
B.应用程序与DBMS的相互独立
③
C.应用程序与存储在磁盘上数据库的物理模式是相互独立的
④
D.应用程序与数据库中数据的逻辑结构相互独立
【单选题】
采用指令Cache与数据Cache分离的主要目的是（ ）。
①
降低 Cache 的缺失损失
②
提高 Cache 的命中率
③
降低 CPU 平均访存时间
④
减少指令流水线资源冲突
【单选题】
数据库系统的物理独立性是指（ ）。
①
不会因为数据的变化而影响应用程序
②
不会因为数据存储结构的变化而影响应用程序
③
不会因为数据存储策略的变化而影响数据的存储结构
④
不会因为数据逻辑结构的变化而影响应用程序
随机题目
【单选题】
Did you get a dictionary?No. I________,but there were not any________.
①
tried;to be left;
②
had tried to;leaving
③
tried to;left
④
had tried;have left
【单选题】
Look,someone is coming. Guess who it_________be?I think it______be Tom.I dont think it______be_______.
①
must;can;must;his
②
may;can;must;him
③
can;must;can;him
④
might;must;can;himself
【单选题】
I will take my daughter with me when I_______ Shanghai.
①
go to
②
will go to
③
have been to
④
have gone to
【单选题】
It was getting dark. I found a car________in a pool by the side of the road.
①
to be stuck
②
stuck
③
sticking
④
stick
【单选题】
This bright girl______ the truth in front of the enemy.
①
didn’t say
②
couldn’t speak to
③
said
④
didn’t tell
【单选题】
________the front door________,he had to enter the room through the back door.
①
Seen;painted
②
Seeing;painted
③
Being seen;being painted
④
Seeing;being painted
【单选题】
This book is_____that one. But______than that one.
①
as difficult as ;expensive
②
as more difficult as ; more expensive
③
as difficult as ; more expensive
④
more difficult as ; as expensive
【单选题】
It was his fault,but he put the blame on others—thats _______ we cant agree.
①
where
②
what
③
how
④
which