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【简答题】
需求建模主要有 : 、面向数据的分析方法、 。
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举一反三
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【单选题】According to the passage, which of the following statements is TRUE?
A.
You should be prepared to make mistakes in communication.
B.
Words are the basis of English learning.
C.
Good pronunciation is important to an English learner.
D.
Wanting to know everything does not help you learn a language.
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A.
infection
B.
be bathed
C.
with
D.
specially prepared
【单选题】如果使用以下T-SQL命令创建book表: CREATE TABLE book ( 书号 char(6), 书名 char(16), 单价 numeric(10,2) ) 则“单价”字段的列宽是( )。
A.
2
B.
8
C.
10
D.
12
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