What documents should I have?

來源: 於 2004-01-06 13:08:00 [舊帖] [給我悄悄話] 本文已被閱讀：次

I am a postdoc in a university with H-1B visa,doing research .I miss my family very much,and want my hu*****and and kid to visit me for a few months.
Does anybody know what kind of documents I need to prepare for them to get H-4 visa in China? How about the chance to get the visa? Is it very difficult?Please help me!