A.15
B.16
C.14
D.18
[单选题]A.15B.16C.14D.18
[单选题]A.-σB.(1+μ)qC.-(1+μ)qD.-μq
[单选题]A.-σB.(1+μ)qC.-(1+μ)qD.-μq
[单选题]A.15B.16C.14D.18
[单选题]A.-σB.(1+μ)qC.-(1+μ)qD.-μq
[单选题]A.-σB.(1+μ)qC.-(1+μ)qD.-μq
[单选题]A.-σB.(1+μ)qC.-(1+μ)qD.-μq
[单选题]A.-σB.(1+μ)qC.-(1+μ)qD.-μq
[单选题]A.-σB.(1+μ)qC.-(1+μ)qD.-μq
[单选题]A.-σB.(1+μ)qC.-(1+μ)qD.-μq