• 2022-11-01
    图示静定三铰刚架B点的水平反力为:[img=362x219]1803b43dac1830c.png[/img]
    未知类型:{'options': ['1803b43db4c8b08.png,向右。', '1803b43dbd72472.png,向左', '0', '1803b43dc5a3649.png,向右。'], 'type': 102}