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方程(dy/dx)^2+3dy/dx=0的通解是()
A.C1+C2e^3x
B.C1x+C2e^(-3x)
C.C1+C2e^(-3x)
D.C2e^(-3x)
A.C1+C2e^3x
B.C1x+C2e^(-3x)
C.C1+C2e^(-3x)
D.C2e^(-3x)
参考答案
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