复变函数<img src="https://static.zxtiku.com/wangke/imgs/topic/82325dba5f9776ef887a00372ecab940.jpg"/>将<img src="https://static.zxtiku.com/wangke/imgs/topic/db9cab17283be3c4d647ec27d4264910.jpg"/>平面上的区域<img src="https://static.zxtiku.com/wangke/imgs/topic/8077f6830600ab6ae8fdcf92ea1d30c6.jpg"/>映射为<img src="https://static.zxtiku.com/wangke/imgs/topic/a2fb7715dfa486d9e8ddbefd6f7c4104.jpg"/>平面上的什么图形？ A. <br/> <img src="https://static.zxtiku.com/wangke/imgs/topic/07dc14f52839b2baee3450476e393f34.jpg"/> B. <br/> <img src="https://static.zxtiku.com/wangke/imgs/topic/bae1dbacf02dc9198d414dc136a2a75b.jpg"/> C. <br/> <img src="https://static.zxtiku.com/wangke/imgs/topic/d7871786cf35698cfab0c7e0d0328752.jpg"/> D. <br/> 以上都不对