Test analysis: This question mainly examines the students' ability to accurately interpret the information in the material. Materials such as "Kill all your pigs and dogs by your own efforts without officers and soldiers and public funds" and "Notice of Application to Britain and Foreign Countries" show that the warring parties in this war are ordinary people in China and British invaders. Combined with historical facts, it is not difficult to judge that this battlefield is the people's anti-British struggle in Sanyuanli, Guangzhou during the First Opium War. Therefore, the answers are A and B C, both of which are the foreign operations of the Qing government, and D is the Boxer's military struggle against the western invading Coalition forces rather than a simple war against Britain.

Comments: With regard to the examination of China people's anti-aggression struggle since modern times, the college entrance examination mainly involves the following major historical events: the destruction of opium in Humen, the anti-British struggle in the Opium War, the peasant uprising in the Taiping Heavenly Kingdom, the Boxer Movement, the Reform Movement of 1898, the Revolution of 1911 and the New Culture Movement, and the new-democratic revolution led by China.