中国大学MOOC: 在http://img2.ph.126.net/SsGahxVl1bim2DDLS2Z5vA==/6630758802932226731.pngNMR中在0 ~ 60 ppm产生三个信号；在http://img2.ph.126.net/kaLkuHYs4M9XAfQNhBGLgA==/1284370318749828257.pngNMR中在0 ~ 5 ppm产生三个信号，最高场信号为双峰的化合物是（ ）

某化合物相应的IR、http://img2.ph.126.net/kaLkuHYs4M9XAfQNhBGLgA==/1284370318749828257.pngNMR、http://img2.ph.126.net/SsGahxVl1bim2DDLS2Z5vA==/6630758802932226731.pngNMR和MS数据如下所示，推测其结构。（）MS碎片离子质荷比和丰度：http://edu-image.nosdn.127.net/7541672A7D3E93DF185B320AC9AEFFFC.png?imageView&thumbnail=890x0&quality=100http://img2.ph.126.net/kaLkuHYs4M9XAfQNhBGLgA==/1284370318749828257.pngNMR http://img2.ph.126.net/SsGahxVl1bim2DDLS2Z5vA==/6630758802932226731.pngNMRhttp://edu-image.nosdn.127.net/4CF6331CBC47CE21BC11391905498C9C.png?imageView&thumbnail=890x0&quality=100http://edu-image.nosdn.127.net/DFDFAD4E63CB717B22C01DE66DD0125A.png?imageView&thumbnail=890x0&quality=100