题目内容
(请给出正确答案)
[单选题]
超声波声速与介质弹性系数、密度之间的关系式是()
A.CL=(E/ρ)1/2
B.CL=[(E/ρ)(1+ς)/(1+ς)(1-2ς)]1/2
C.CL=[(E/ρ)(1-ς)/(1+ς)(1-2ς)]1/2
D.CL=(G/ρ)1/2
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A.CL=(E/ρ)1/2
B.CL=[(E/ρ)(1+ς)/(1+ς)(1-2ς)]1/2
C.CL=[(E/ρ)(1-ς)/(1+ς)(1-2ς)]1/2
D.CL=(G/ρ)1/2