题目

 Seeing the enemy, Gary was behaving as though nothing ______. A. happened           B. had happened   C. would happen        D. was happening  答案：B(4) 影响。① 积极:对西方殖民者的侵略活动，起了一定的自卫作用。② 消极:使清政府看不到世界形势的变化，未能适时向西方学习先进的科学 知识和生产技术，中国在世界上逐渐落伍了。