1)I-864表和 I-130一起寄還是等他們要求了再寄?(我沒有工作)
-If your parents are in China, you do not need to file I-864 with the I-130 together, but file it when NVC ask you to do that. If your parents are in US, you need to file I-864 with I-130 together.
2)除了父母的結婚證之外,還需要他們準備各自的出生公證麽?
-Yes.