回复：回复：回复：请问持中国大陆护照，现在 在加拿大做访问学者， 期间能否来美国几天？是否需要签证？

来源: sdfsdfsdff 于 2011-07-10 11:45:00 [] [旧帖] [给我悄悄话] 阅读数 : (151 bytes)

get a letter from your Canadian employer to prove your ties to Canada, so you will return to Canada on time to resume employment after the trip.

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