物质的量为n的单原子理想气体等压升高温度，从<img src="https://static.zxtiku.com/wangke/imgs/topic/86d61c7cb9270b03ae13bb949077e818.jpg"/>到<img src="https://static.zxtiku.com/wangke/imgs/topic/2f5e9eb52bb6086b58f45470ac96dd12.jpg"/>，则<img src="https://static.zxtiku.com/wangke/imgs/topic/0bdcbdecaf4ada5a21444a66e77baedb.jpg"/>为（） A. <img src="https://static.zxtiku.com/wangke/imgs/topic/807fdf24950382e49b24533597a72714.jpg"/> B. <img src="https://static.zxtiku.com/wangke/imgs/topic/c9a999480bc1bd09e4e4566e61236365.jpg"/> C. <img src="https://static.zxtiku.com/wangke/imgs/topic/c8a6f957355de93913fa6b6a04025e35.jpg"/> D. <img src="https://static.zxtiku.com/wangke/imgs/topic/5a14253c9501c7f1dd464e73f3caf74d.jpg"/>