请问：怎样申请美国的Visa?准备六月份去美国开会，已经收到会议邀请信。 请问怎样申请去美国的Visa. 据说有几个国大认可的旅行社可以代办，具体是那几家？另外还需要哪些证明材料？ 第一次申请，还望各位过来人多多指点。越详细越好。 先谢过各位了。

[海禹 (4-28 15:26, Long long ago)] [ 传统版 | sForum ][登录后回复]1楼

come inhttp://singapore.usembassy.gov/consular/nonimmigrant.shtml

read the category of "travle agent submission"

contact any one of them and they will tell you details on the documentation and application precudure.[simon (4-28 15:40, Long long ago)] [ 传统版 | sForum ][登录后回复]2楼

(引用 simon:come inhttp://singapore.usembassy.gov/consular/nonimmigrant.shtml read the category of "travle agent submission" contact any o...)thank you very much[海禹 (4-28 15:47, Long long ago)] [ 传统版 | sForum ][登录后回复]3楼