别指望在加拿大办美签了,人家网站上写的很清楚: : y- \. y5 Z9 D1 [ M5 b" {+ d0 v4 I& J0 F; o+ U. ~1 z8 z http://www.consular.canada.usembassy.gov/usa_visa.asp 里的: . J v4 h) n; u; R' P+ ]3 _* H# u, n0 N
"Important Notice for Applicants with a Visitor's Permit to Canada . X, M3 s5 ~. r) t. {- o4 \+ k2 r2 L5 |0 {! [) ^9 l1 P) s* l4 N
With rare exceptions, visa applicants temporarily visiting Canada should apply at the U.S. Consular Section in their country of residence."