图示结构中C点的竖向位移为fC,转角为θC,则A点的竖向位移fA应为()。
A.fA=0
B.fA=fC
C.
D.
参考答案:C
解析:
挠曲线光滑,且CA段为直线(因不受力)。
赫尔巴特
·Look at the ten statements for this part. ·You will hear a passage about "Who First Started to Smoke" ; you will listen to it twice, ·Decide if you think each statement is right(R), wrong(W) or not mentioned(NM).
Who First Started to Smoke
In Sir Walter Raleigh’s days, not many people knew about smoking.
A.Right
B.Wrong
C.Not Mentioned