函数<img src="https://static.zxtiku.com/wangke/imgs/topic/6d319167fc3770136a07b354640c050f.jpg"/>在点<img src="https://static.zxtiku.com/wangke/imgs/topic/3e99a2ef0d1681eee599965c9add9ab5.jpg"/>处的留数<img src="https://static.zxtiku.com/wangke/imgs/topic/cb6bc45e6d22afcdbfbaf073bdeb39d5.jpg"/><br/> A、<img src="https://static.zxtiku.com/wangke/imgs/topic/9b6ed738d1a99fdf7ac1f83b925deef4.jpg"/><br/> B、<img src="https://static.zxtiku.com/wangke/imgs/topic/a0a45033ceda40744dfe610a3c6d58d8.jpg"/><br/> C、<img src="https://static.zxtiku.com/wangke/imgs/topic/3f7a9a6ff467fcb1072fc7768dc4cd56.jpg"/><br/> D、<img src="https://static.zxtiku.com/wangke/imgs/topic/fe8d5fb41f9f77005860d6d6ca6dc0c6.jpg"/>