美国B1/B2签证的问题!!请帮忙!!

遥望

第一次申请美国B1/B2签证,有两个问题想请大家帮忙解答:

(1) 我今天在网上预约的appointment,请问最晚什么时候必须在网上填写DS-156表啊?
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3 }6 o- Y4 u3 D  I! @: p) W(2) 我是加拿大的移民.这次申请visa是因为要去美国面试.美国的公司给了邀请信.但
- \# q. k* l& I, ]; I是好像听说以面试的原因来签证容易被拒.是这样吗? 有朋友建议请我的美国朋友写封
$ b  p5 j+ f# Z- D邀请信,以看朋友的名义去签会容易一点.请问一下大家的意见.多谢!!!!!

Tara2009

1.you can fill DS156 even in the consulate U.S. Calgary. There are two desktops and one printer there. I saw somebody busy filling the form there. I finished this form one day before my appointment.
2. I don't have experience in your situation. However, I did not see any rejection in Calgary that day I was interviewed. Because everyone was asked to give them a X PRESS envelope. Nobody had the passport returned the same day (that means rejection). More than 120 people were interviewed that morning.