别指望在加拿大办美签了,人家网站上写的很清楚: & ]$ S# K4 x2 l2 G4 h7 y g& T1 `% R, p7 |( ` http://www.consular.canada.usembassy.gov/usa_visa.asp 里的: : t- Q; T. T, H4 }4 O }1 Q% Z, @4 J# a2 q
"Important Notice for Applicants with a Visitor's Permit to Canada \) k8 V: C+ E ; I* j7 }; N0 C7 z/ P" V, eWith rare exceptions, visa applicants temporarily visiting Canada should apply at the U.S. Consular Section in their country of residence."