—I'm sorry sir. What seems to be the _________?
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—I think you have_______________________ for the same thing. Look, the __________________of 5.50appears___________________ here.
—I'll just go and _______________________sir.
梁的挠度是( )
A. 横截面形心沿垂直梁轴线方向的线位移
B. 横截面形心的线位移
C. 横截面形心沿梁轴线方向的线位移
D. 横截面上任意点沿垂直梁轴线方向的线位移
关于梁转角的说法,错误的是( )
A. 转角是挠曲线的切线与x轴的夹角
B. 转角是横截面绕梁的轴线转过的角度
C. 转角是变形前后同一横截面间的夹角
D. 转角是横截面绕中性轴转过的角位移