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【简答题】
External factors can also affect a company’s business environment and the business has more control over these factors.()
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举一反三
【单选题】All the following languages can be used for relational databases, EXCEPT
A.
T-SQL.
B.
SQL.
C.
SQL-92.
D.
BASI
【单选题】Find the slope of the line passing through the pair of points.
A.
m = 5
B.
m = 1
C.
m = 2
D.
m = -1
E.
none of these
【简答题】How do we find the slope of a nonlinear curve?
【单选题】What does the term “atomic” mean in the context of relational databases?
A.
One unit of information that cannot be decomposed.
B.
A column or row of data. Depends on the context.
C.
A tuple that cannot be reduced.
D.
Fixed schema of a particular database.
【单选题】Relational databases represent relationships using ________.
A.
foreign keys
B.
file systems
C.
metadata
D.
primary keys
E.
trees
【单选题】Find the slope of the line through P (–9,1) and Q (–3,–11).
A.
m = –1
B.
m = –2
C.
m = –4
D.
m = –3
E.
m = 0
【简答题】As 20th century approaches, we can find ________________ (更多女性进入电影行业).
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