开始没看明白,后来仔细看了主帖给出的链接:http://usgovinfo.about.com/library/blinstst_new.htm
New Test Questions and Answers
Some questions have more than one correct answer. In those cases, all acceptable answers are shown. All answers are shown exactly as worded by the U.S. Citizenship and Immigration Services.
(某些问题不止一个正确答案。在这些问题中,所有可接受的答案都被列出。所有列出的答案都来自美国公民和移民服务局。)“所有可接受的答案都被列出”,这意味着只要你的答案在这里面,那么这个问题就算过关了。