地西泮的化学结构是<br/> A、<img src="https://static.zxtiku.com/wangke/imgs/topic/9da1c2d44de031dc5fce15e58fc55884.jpg"/><br/> B、<img src="https://static.zxtiku.com/wangke/imgs/topic/762fd009c076ce1cc7d8b6f3a50b1c06.jpg"/><br/> C、<img src="https://static.zxtiku.com/wangke/imgs/topic/526b615bcd1771cbfcbc48008dbd86b6.jpg"/><br/> D、<img src="https://static.zxtiku.com/wangke/imgs/topic/28cc92a722b262b0d9e6a27b6a0fe59e.jpg"/>