未知题型

A.174.24.96:6088/Latex/latex.action?latex=XGxlZnRce1xiZWdpbnthcnJheX17Y311X3g9N3hcXHVfeT0tNXlcZW5ke2FycmF5fQ%3D%3D'
B.174.24.96:6088/Latex/latex.action?latex=XGxlZnRce1xiZWdpbnthcnJheX17Y311X3g9bG4oeV4yL2JeMit6XjIvY14yKVxcdV95PXNpbih4%0D%0AXjIvYV4yK3peMi9jXjIpXGVuZHthcnJheX0%3D'
C.174.24.96:6088/Latex/latex.action?latex=XGxlZnRce1xiZWdpbnthcnJheX17Y311X3g9eF4yK3peMisxNVxcdV95PXleMit6XjJcZW5ke2Fy%0D%0AcmF5fQ%3D%3D'
D.174.24.96:6088/Latex/latex.action?latex=XGxlZnRce1xiZWdpbnthcnJheX17Y311X3g9eHl6dFxcdV95PS14eXp0XjJcZW5ke2FycmF5fQ%3D%3D'
【参考答案】

连续方程为

(1);;=-7+5=-2,duz=-2dz,积分得u......

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