单项选择题
A.是方程75=75e-μ+6e-3/4μ的解B.是方程75=75e-μ+8e-3/4μ的解C.是方程77=75e-μ+6e-3/4μ的解D.是方程77=75e-μ+12e-3/4μ的解
A.0.15238B.0.15388C.0.38806D.0.43841E.0.57578
A.0.13158,0.08664B.0.13158,0.09120C.0.13158,0.09242D.0.13333,0.09120E.0.13333,0.09242