求问化工专业在填美签表的时候，关于chemical t

求问研究生化工专业，从事的是化工相关的商务工作。在填美签申请表时，Do you have any specialized skills or training, such as firearms, explosives, nuclear, biological, or chemical experience? 这一项应该选YES还是NO？其实我真得不记得有什么相关的trainings.
谢谢