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【单选题】
根据帕累托最优原则,当生产要素固定时,如果增加A产品产量会导致B产品的产量下降,则当前的生产要素分配方式是()。
A.
没有效率的
B.
有效率的
C.
不确定是否有效率
D.
以上都不对
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举一反三
【单选题】The same individuals may set different priorities for attributes according to all of the following EXCEPT which one?
A.
The purpose of using the service.
B.
Who makes the decision?
C.
The timing of use.
D.
The cost of the service.
【单选题】What is the term given to the idea that the combined output of a number of individual working together will exceed that of the same individuals working separately?
A.
sympathy
B.
specialisation
C.
synergy
D.
systems thinking
【判断题】晶体三极管工作在放大区时,若 i B 为常数,则 u CE 增大时, i C 几乎不变,故当晶体三极管工作在放大区时可视为一电流源。( )
A.
正确
B.
错误
【单选题】2 What is the term given to the idea that the combined output of a number of individuals working together will exceed that of the same individuals working separately?
A.
Sympathy
B.
Specia I isation
C.
Synergy
D.
Systems thinking
【单选题】What is the term given to the idea that the combined output of a number of individuals working together will exceed that of the same individuals working separately?
A.
Sympathy
B.
SpeciaIisation
C.
Synergy
D.
Systems thinking
【简答题】晶体三极管的输出特性可以分为 区, 区和 区;三极管工作在 区有电流放大作用,当三极管交替工作在 区和 区时有开关作用。
【单选题】当晶体三极管工作在放大区时,为( )。
A.
发射结和集电结均反偏
B.
发射结正偏,集电结反偏
C.
发射结和集电结均正偏
D.
发射结反偏,集电结正偏
【单选题】2 What is the term given to the idea that the combined output of a number of individuals working together will exceed that of the same individuals working separately?
A.
Sympathy
B.
Specialisation
C.
Synergy
D.
Systems thinking
【简答题】晶体三极管的工作状态分为三个区域,当电源EC一定,IC很大,VCE很小Ib再增大,IC缓慢增大或不增大,三极管失去放大作用,此时三极管工作在()。
【判断题】Repeated measurements from the same individuals is an example of data collected from two related populations.
A.
正确
B.
错误
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