![](https://static.youtibao.com/asksite/comm/h5/images/m_q_title.png)
[单选题]
如图,点E是△ABC的内心,AE的延长线和△ABC的外接圆相交于点D.连接BD,BE,CE,若∠CBD=33°,则∠BEC的度数为()
A.66°
B.114°
C.123°
D.132°
![](https://static.youtibao.com/asksite/comm/h5/images/m_q_a.png)
A、66°
![](https://static.youtibao.com/asksite/comm/h5/images/solist_ts.png)
A.66°
B.114°
C.123°
D.132°
A、66°
如图7-3-14所示结构,ABC段的抗弯刚度为,其余各段的抗弯刚度为EI,弹簧的刚度为k,在图示荷载及C点支座沉陷 共同作用下,若使结构中C支座不产生拉力,试确定沉陷 与弹簧刚度k应满足的关系.
A.FP=1在B点时,截面D的弯矩值
B.FP=1在E点时,截面B的弯矩值
C.FP=1在B点时,截面E的弯矩值
D.FP=1在E点时,截面E的弯矩值