______ particularly the oxides of sulfur greatly increases the rate at which rust forms.
公共英语
已帮助 人
______, particularly the oxides of sulfur, greatly increases the rate at which rust forms.
A．The presence of air pollutants
B．Air pollutants are present
C．Because the presence of air pollutants
D．Air pollutants whose presence
请帮忙给出正确答案和分析，谢谢！