• 2022-06-17
    试作题[tex=3.143x1.357]j4pQ4G61sCDeAf+euPWMXA==[/tex]图所示刚架的[tex=1.0x1.0]/4LSvKfNeQWJ+IvWbbbjdA==[/tex]图。设[tex=2.0x1.0]hYBAALM+V4PV1D5W5pIDqA==[/tex]常数。[img=441x400]179df25d3eab6aa.png[/img][img=389x232]179df260d0c0b2c.png[/img]