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【判断题】
关系模式中各级模式之间的关系为3NFÌ 2NFÌ 1NF。A.
正确
B.
错误
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举一反三
【单选题】Which of the following statements about legitimate power is false?
A.
Legitimate power is at the foundation of our social structure.
B.
Social structures are inherently inefficient, and this realization creates the basis for legitimate power.
C.
Legitimate power cannot function without obedience.
D.
Legitimate power is often derived from manipulating other sources of power.
E.
All of the above statements about legitimate power are true.
【单选题】Legitimate power is based on ________.
A.
positive rewards
B.
interpersonal trust
C.
structural position
D.
expert knowledge
E.
respect and admiration
【单选题】国际物流需要信息系统、信息技术的支持,国际物流中最常用的信息技术是电子数据交换,电子数据交换的英文简写是 ( ) 。
A.
GPS
B.
EDI
C.
DPS
D.
GIS
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