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【单选题】
若一个关系模式R(U,F)中,属性集合U的任何一个真子集的值给定以后都不能完全确定一行,则称该关系模式的码为( )。A.
主码
B.
完全函数依赖
C.
全码
D.
候选码
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反馈参考答案：
举一反三
【单选题】What comments did the election officials make on the report?
A.
It is true.
B.
It is groundless.
C.
It is ridiculous.
D.
They made no comments at all.
【简答题】Work well with a multi-cultural and diverse work force.
【简答题】How can you proactively prepare for multi-cultural business?
【单选题】胃肠钡餐造影时,下列哪项不属于胃溃疡的特殊表现( )
A.
龛影深而大,深度与大小均超过1cm
B.
龛影周围有环堤征
C.
龛影很大,其中出现液面和分层现象
D.
龛影较大,口部常有一圈较宽的透明带,边界清楚而整齐
E.
龛影较大,达1.5~2.Ocm,深度不超过1.0cm
【单选题】在多元文化社会,人们需要熟悉文化。In multi-cultural societies, people should _______.
A.
have knowledge about cultural
B.
be culturally competent
C.
be cultural knowledgeable
D.
be familiar with cultural
【简答题】滚子链是由滚子、 、销轴、 和 组成。
【判断题】Managers ’ failure to regard cultural issues obviously will often create chaos in a multi-cultural company.
A.
正确
B.
错误
【简答题】Work well with a multi-cultural and diverse work force.
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