USCIS 2025 · 101
Why did the United States enter World War I?
美国为什么参加第一次世界大战？
官方答案 / Official answers
Because Germany attacked U.S. (civilian) ships
因为德国袭击了美国（民用）船只
To support the Allied Powers (England, France, Italy, and Russia)
支持协约国（英国、法国、意大利和俄国）
To oppose the Central Powers (Germany, Austria-Hungary, the Ottoman Empire, and Bulgaria)
反对同盟国（德国、奥匈帝国、奥斯曼帝国和保加利亚）
Follow the number of answers requested in the question. Listed alternatives are accepted answers, not multiple-choice distractors.
按题目要求回答相应数量；列表为可接受答案，不是单选题的干扰选项。
官方出处 / Official source
The English questions and answers are published by USCIS. Chinese translations are unofficial study aids. This independent site is not affiliated with USCIS and makes no outcome guarantees.
英文问题与答案引用 USCIS 公开资料，中文为非官方学习翻译。本站与 USCIS 无隶属关系，不保证考试结果。