回複：you mean different system or 回複：They're different - 回複：H1B回國被

來源: 於 2007-11-29 08:51:52 [博客] [舊帖] [給我悄悄話] 本文已被閱讀：次

Both are conducted by FBI, but for different purpose, and performed in a different way. They can not be replaced each other.