别指望在加拿大办美签了,人家网站上写的很清楚: . b! I/ S& s' d8 m: D: d1 e5 o5 g3 ~% h http://www.consular.canada.usembassy.gov/usa_visa.asp 里的: + x' R) O8 R# X) J2 @4 u5 b9 i; s \$ _4 C! j' x$ g& B& v4 K' L
"Important Notice for Applicants with a Visitor's Permit to Canada " X, }- c5 C. }9 a # e6 T( w1 v: o' |' |& t& W/ L: IWith rare exceptions, visa applicants temporarily visiting Canada should apply at the U.S. Consular Section in their country of residence."