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【单选题】
If the objective coefficient of a basic variable in the optimal basis of linear programming problem changes, then ( )
A.
The test number of this basic variable changes
B.
The test number of other basic variables changes
C.
The test numbers of all non-basic variables change
D.
The test numbers of all variables change
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B.
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C.
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D.
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A.
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A.
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A.
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B.
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D.
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【单选题】Corresponding to the excitation reactance of the asynchronous motor, there is ( ).
A.
Leakage reactor
B.
Armature reaction reactor
C.
Synchronous reactance
D.
There is no corresponding reactance to it.