—I think there has been a _____________.
查看答案
—I'm sorry sir. What seems to be the _________?
—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