在某些恒星内部的核反应中,有下列碳循环反应: 上面反应式中未知原子核X和Y分别是
A <img src="https://www.beizhujiaoyu.com/uploads/202208/2012092617229151915jpg" alt="" /> B <img src="https://www.beizhujiaoyu.com/uploads/202208/201209261722042242jpg" alt="" /> C <img src="https://www.beizhujiaoyu.com/uploads/202208/201209261723082382jpg" alt="" /> D <img src="https://www.beizhujiaoyu.com/uploads/202208/2012092617239937993jpg" alt="" />