本人现在是H1b身份，绿卡申请中，公司打算派我去大陆帮忙，说是希望我在移民法允许的前提下，尽可能多花时间在大陆。
请问，如果我出差去大陆，每年有几次的限制吗？
-No limit.
每次最多可以在国内呆多久？
-No limit either, but had better no more than one year continuously. If your green card is approved during you are in China, you need to ask someone to send the GC to you to come back.
