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【判断题】
关系模型中,不包含在任何候选码中的属性称为非主属性。A.
正确
B.
错误
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参考解析：
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皮皮学刷刷变学霸
举一反三
【单选题】Doctors who treat depression will distinguish major depression and dysthymia and treat them differently.
A.
Y
B.
N
C.
NG
【单选题】Evaluation of depression can be conducted only when such depression is not attacking the patient.
A.
Y
B.
N
C.
NG
【简答题】通过将乙酰CoA加入到只含有酶、辅酶和柠檬酸循环中间产物的无细胞体系中，能否净合成草酰乙酸？
【简答题】A.神经根型颈椎病 B.脊髓型颈椎病 C.椎动脉型颈椎病 D.交感神经型颈椎病 E.复合型颈椎病
【简答题】In times of economic cr. Americans turn to their families for support. If the Great Depression is any guide, we may see a drop in our skyhigh divorce rate. But this won't necessarily represent. an...
【单选题】Which one is wrong about the Great Depression?( )
A.
The Great Depression started with the crash of the New York stock market.
B.
More than 9000 banks closed down.
C.
It took a short time for the New York Stock to recover.
D.
Many people became homeless because of the Great Depression.
【简答题】One of you close friends tells you : “ I am suffering from depression(沮丧、消沉). I have trouble sleeping. I’m often tired. When I think about the future I feel hopeless about it. I don’t enjoy anything. ...
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