单选题
图示结构梁的最大弯矩是:

- A.<img src="https://timg.fentiku.com/97/2016/12/22/v3Ztnv9K1c.png" title='v3Ztnv9K1c.png' alt='v3Ztnv9K1c.png'/>
- B.<img src="https://timg.fentiku.com/97/2016/12/22/Yq7TgAJf2L.png" title='Yq7TgAJf2L.png' alt='Yq7TgAJf2L.png'/>
- C.<img src="https://timg.fentiku.com/97/2016/12/22/tPhux0qOpB.png" title='tPhux0qOpB.png' alt='tPhux0qOpB.png'/>
- D.<img src="https://timg.fentiku.com/97/2016/12/22/pbBkHJGU7m.png" title='pbBkHJGU7m.png' alt='pbBkHJGU7m.png'/>
正确答案:B
