请教：I-140要求补充材料

接到通知要求补充材料，如下：

1. Submit evidence to establish how to benefit of the self-petitioner's work is of national importance. What effect would the proposed employment of the individual alien have on the United States as a whole?
2. Submit evidence to persuasively establish that national interest would be adversely affected if the beneficiary were required to obtain labor certification from the U.S. Department of Labor. Would a U.S. worker with the same minimum qualifications be able to perform the same occupation and serve the national interest to a similar degree? How will the individual alien serve the national interest to a substantially greater degree that other individuals having similar credentials in the field? Please submit persuasive documentary evidence to substantiate your response.

在已提供的材料中，已有10封推荐信，是不是还要追加推荐信？如果是，多少封为宜？
还要补充哪些材料呢？有点儿不知道从何下手。请大家帮帮忙，万分感谢！

所有跟帖： 

• 回复：请教：I-140要求补充材料 -216138- ♀ (286 bytes) () 11/02/2005 postreply 11:52:37

• thanks -7198- ♀ (26 bytes) () 11/02/2005 postreply 13:00:57

• 回复：请教：I-140要求补充材料 -GODBLESS- ♂ (226 bytes) () 11/02/2005 postreply 12:56:57