别指望在加拿大办美签了,人家网站上写的很清楚: 6 c+ _' U$ d& N/ F5 @& L) G# g# ]1 r! V, t http://www.consular.canada.usembassy.gov/usa_visa.asp 里的:. g& h, N& j& { L
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"Important Notice for Applicants with a Visitor's Permit to Canada1 n+ s0 F$ |3 @1 m$ l- Q& v
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With rare exceptions, visa applicants temporarily visiting Canada should apply at the U.S. Consular Section in their country of residence."