A:where; where
B:which; which
C:which; where
D:where; which
有科学家研究发现,氧气可通过高能真空紫外线照射二氧化碳直接产生,该化学反应模型如图所示,关于该反应的说法错误的是( )
▲= ____,□=____,●=____,○=____