【单选题】【消耗次数：1】
在数据库设计中，将ER图转换成关系数据模型的过程属于（ ）。
①
A.需求分析阶段
②
B.逻辑设计阶段
③
C.概念设计阶段
④
D.物理设计阶段
参考答案：
复制
纠错
相关题目
随机题目
【单选题】
This article deals with the natural phenomenon which __________ most interesting to everyone.
①
are
②
is
③
they are
④
it is
【单选题】
This is a very difficult operation. It is essential that you __________ for emergency.
①
are to be prepared
②
would prepared
③
be prepared
④
must be prepared
【单选题】
I __________ going to the doctor, but I wish I hadn’t.
①
pick out
②
make out
③
give off
④
put off
【单选题】
Not __________, with youth unemployment so high, some school – leavers with qualifications fail to find jobs.
①
obviously
②
surprisingly
③
particularly
④
normally
【单选题】
I’ll send you a short message as soon as I _______ in Hong Kong.
①
arrived
②
will arrive
③
am going to arrive
④
arrive
【单选题】
Good morning, Dr Johnson’s office. Can I help you?
①
Speaking, please
②
I’d like to make an appointment, please
③
Yes, go on
④
No, you can’t
【单选题】
The population of many Alaskan cities has __________ doubled in the past three years.
①
larger than
②
as great as
③
more than
④
as many as