甲任邮政中心信函分拣组长期间,先后三次将各地退回信函数万封(约500公斤),以每公斤04元的价格卖给废品收购站,所得款项占为己有。关于本案,下列哪一选项是正确的?()
A campus emergency ______ occur at any time of the day or night, weekend, or holiday, with little or no warning.
免费的网站请分享给朋友吧