1. petition letter主打美国的研究，会提到中国的中文文章的引用，但研究方向完全不同，困惑的是到底要不要找引用中文文章的推荐人专门写一封推荐信？害怕申请打向两个不同的方向。
-Your former advisor in China is enough.
2. 有没有啥策略能把两个不同方向在绿卡申请的package里面连起来？
-Not need to link it and your achievements in China may be used to prove your abilities and the achievements in US may be used to prove your abilities and national interests.
3. 只是选择PHD导师和5号是中国人的assistant professor提及中文文章的研究成果够不够？（虽然中文文章引用多，但不再专门用一个推荐人写推荐信）
-Fine.
4. 俺的律师明说建议尽量不用PHD导师和论文committee做推荐人写推荐信，大家怎么看？
-Your advisor and one committee have to provide the recommendations because they are the best people who know you very well and understand your job imporatnce and achievements very well. The lawyer does not make sense.
5. 能否请你们帮助选择对我的情况最有利的组合？
-Five to seven recommendation letters are good enough, and nine are too much. Each letter had better be not more than two pages. Also, two independent references are good enough.
