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【单选题】
电压源与电流源等效变换的依据是( )A.
欧姆定律
B.
全电路欧姆定律
C.
叠加定理
D.
定理
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A.
0.2～0.4
B.
0.3～0.5
C.
0.4～0.6
D.
0.5～0.7
E.
0.6～0.8
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A.
Differentiation focus
B.
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C.
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D.
Cost leadership
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A.
The conflict between labor and management would intensify.
B.
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C.
Professional drivers would have a hard time adapting to new road conditions.
D.
Numerous professional drivers would have a find new ways of earning a living.
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