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【单选题】
数据库DB、DBMS、DBS三者之间的关系是:A.
DB包括DBMS和DBS
B.
DBS包括DB和DBMS
C.
DBMS包括DB和DBS
D.
DBS与DB和DBMS无关
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反馈参考答案：
举一反三
【简答题】The project is on the point of collapse, and unless something very __ is done to repair the damage there will be no hope for the project.
【单选题】The project is on the point of collapse, and unless something very is done to repair the damage there will be no hope for the project.
A.
sensible
B.
radical
C.
recent
D.
peculiar
【单选题】The project is on the point of collapse, and unless something very _____ is done to repair the damage there will be no hope for the project.
A.
rational
B.
radical
C.
ready
D.
relative
【简答题】The project is on the point of collapse, and unless somenthing very___ is done to repair the damage there will be no hope for the project.
【简答题】某高科技企业生产产品A和产品B需要甲、乙两种新型材料。生产一件产品A需要甲材料1.5kg，乙材料1kg，用5个工时；生产一件产品B需要甲材料0.5kg，乙材料0.3kg，用3个工时，生产一件产品A的利润为2100元，生产一件产品B的利润为900元。该企业现有甲材料150kg，乙材料90kg，则在不超过600个工时的条件下，生产产品A、产品B的利和的最大值为元。
【简答题】The project is on the point of collapse, and unless something very ( ) is done to repair the damage there will be no hope for the project.
【单选题】The project is on the point of collapse, and unless something very ( ) is done to repair the damage there will be no hope for the project.
A.
radical
B.
predict
C.
sensible
D.
equvalient
【单选题】The project is on the point of collapse, and unless something very _____ is done to repair the damage there will be no hope for the project.
A.
rational
B.
radical
C.
ready
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