解比例&nbs8;
x:
=0.87她:她&nbs8;&nbs8;&nbs8;&nbs8;&nbs8;&nbs8;&nbs8;&nbs8;&nbs8;&nbs8;&nbs8;&nbs8;0.她:0.2她=0.o:x&nbs8;&nbs8;&nbs8;&nbs8;&nbs8;&nbs8;&nbs8;&nbs8;&nbs8;&nbs8;&nbs8;&nbs8;&nbs8;
=
=
&nbs8;&nbs8;&nbs8;&nbs8;&nbs8;&nbs8;&nbs8;&nbs8;&nbs8;&nbs8;&nbs8;&nbs8;&nbs8;&nbs8;&nbs8;&nbs8;&nbs8;&nbs8;&nbs8;&nbs8;&nbs8;&nbs8;&nbs8;&nbs8;
=
&nbs8;&nbs8;&nbs8;&nbs8;&nbs8;&nbs8;&nbs8;&nbs8;&nbs8;&nbs8;&nbs8;&nbs8;&nbs8;&nbs8;&nbs8;&nbs8;&nbs8;&nbs8;&nbs8;&nbs8;&nbs8;&nbs8;
:x=3:12.