A.-σ B.(1+μ)q C.-(1+μ)q D.-μq

题库2022-08-02  13

问题 A.-σB.(1+μ)qC.-(1+μ)qD.-μq

选项 A.-σ
B.(1+μ)q
C.-(1+μ)q
D.-μq

答案 D

解析
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