设<img src="https://static.zxtiku.com/wangke/imgs/topic/7e96fa2cadb2b2a97dd0a90a0aea9d97.jpg"/>为平面<img src="https://static.zxtiku.com/wangke/imgs/topic/5aadfc8a4ed9df901b1332e36b3c0c99.jpg"/>在第一卦限内的部分，则<img src="https://static.zxtiku.com/wangke/imgs/topic/94a67e59f6ec0bf79c5ee136302721ca.jpg"/>（）。<br/> A、<img src="https://static.zxtiku.com/wangke/imgs/topic/b352bebec5419f0993a3d4eeacaaf066.jpg"/><br/> B、<img src="https://static.zxtiku.com/wangke/imgs/topic/2bddd866edcbd421dc89e0ce2851674f.jpg"/><br/> C、<img src="https://static.zxtiku.com/wangke/imgs/topic/1bb85e5036e3a230165de2333aa52a21.jpg"/><br/> D、<img src="https://static.zxtiku.com/wangke/imgs/topic/9af4f2e4ce17e86d5fa91bf8473bc6a4.jpg"/>