B1/2 一次出入簽可以去加拿大再回來嗎?

来源: 于 2003-11-13 14:03:00 [旧帖] [给我悄悄话] 本文已被阅读：次
My dad got his B1 and wish to visit CAD. Assuming he get visa to CAD, will he have problem coming back? Thank you!