别指望在加拿大办美签了,人家网站上写的很清楚: * h& J. d h0 f( D' c9 p# d5 d
2 S$ j$ b2 j S2 a7 Z& v* chttp://www.consular.canada.usembassy.gov/usa_visa.asp 里的: + \ I* f; M0 k0 R8 n( n! O8 M8 Q, _9 o" v0 U: w6 g, W4 G
"Important Notice for Applicants with a Visitor's Permit to Canada & i" m- X5 v U0 {) x5 J; R* P) E2 l( c6 H$ w" u" ~( Z9 _2 q/ H
With rare exceptions, visa applicants temporarily visiting Canada should apply at the U.S. Consular Section in their country of residence."