图示等跨连续梁在哪一种荷载布置作用下，bc跨的跨中弯矩最大？

• A.<img src="https://timg.fentiku.com/97/2016/12/22/hEvmfkgMT6.png" title='hEvmfkgMT6.png' alt='hEvmfkgMT6.png'/>
• B.<img src="https://timg.fentiku.com/97/2016/12/22/neZtD1PMzh.png" title='neZtD1PMzh.png' alt='neZtD1PMzh.png'/>
• C.<img src="https://timg.fentiku.com/97/2016/12/22/Hp2Y0BAJj1.png" title='Hp2Y0BAJj1.png' alt='Hp2Y0BAJj1.png'/>
• D.<img src="https://timg.fentiku.com/97/2016/12/22/57z1RufDwV.png" title='57z1RufDwV.png' alt='57z1RufDwV.png'/>

正确答案：C