别指望在加拿大办美签了,人家网站上写的很清楚: 2 Q, q- e8 f4 x& ]' d 9 t! L& Z) { W9 x9 @* d3 Q- S2 phttp://www.consular.canada.usembassy.gov/usa_visa.asp 里的: ; a5 G4 B- ^! T7 [# ^( O! \ ) K* f( F+ I7 o- p"Important Notice for Applicants with a Visitor's Permit to Canada* E$ F+ N- V( K0 m3 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."