[名词解释] 污染物的迁移

脑转移瘤好发于 ["A．大脑皮层","B．小脑皮层","C．大、小脑皮层","D．脑髓质","E．皮髓质交界区"] 一次污染物 有关颅内压增高平片表现的描述，错误是 ["A．颅缝增宽","B．脑沟增宽","C．蝶鞍增大","D．脑回压迹增多","E．颅壁变薄"] 男，36岁，头痛，癫癎，CT示脑实质多数高密度点状影和0．5～1cm圆形低密度灶，呈环形增强。最可能的诊断是 ["A．多发性硬化","B．脑脓肿","C．结节性硬化","D．脑囊虫病","E．病毒性脑炎"] 环境生物效应 污染物的迁移