图示梁EI=常数,B端的转角是:()A: 5ql3/48EI(顺时针)B: 5ql3/48EI(逆时针)C: 7ql3/48EI(逆时针)D: 9ql3/48EI(逆时针)

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图示梁EI=常数,B端的转角是:()

  • A: 5ql3/48EI(顺时针)
  • B: 5ql3/48EI(逆时针)
  • C: 7ql3/48EI(逆时针)
  • D: 9ql3/48EI(逆时针)

请帮忙给出正确答案和分析,谢谢!