回复：I have submitted I-140 recently. My question is:

来源: 于 2009-04-15 10:49:43 [旧帖] [给我悄悄话] 本文已被阅读：次

I've been back to China a few times without a problem. The safest, and easiest way is to obtain an advanced parole document before your departure. But I have used H-1B visa as well without a problem.