【单选题】All the following languages can be used for relational databases, EXCEPT
【单选题】Find the slope of the line passing through the pair of points.
【判断题】导游员在导游活动中应遵循因人而异、因地制宜、因时制宜这三大导游讲解的基本原则。( )
【简答题】How do we find the slope of a nonlinear curve?
【判断题】导游员在导游活动中应遵循因人而异、因地制宜、因时而变这三大导游讲解的基本原则。( )
【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】Find the slope of the line.
【单选题】Relational databases represent relationships using ________.
【单选题】Find the slope of the line through P (–9,1) and Q (–3,–11).
【简答题】As 20th century approaches, we can find ________________ (更多女性进入电影行业).