别指望在加拿大办美签了,人家网站上写的很清楚: * ~. |% I: A5 K
6 R. D2 Y' m& X( v6 p5 l' r http://www.consular.canada.usembassy.gov/usa_visa.asp 里的: & C5 [6 t: I7 A8 O2 a* b2 O & Y- o6 [ c% |, f* h) w3 G0 \"Important Notice for Applicants with a Visitor's Permit to Canada : k7 n& `) X2 x/ m, T - A. \; q5 ]5 v6 z" N3 U# c; mWith rare exceptions, visa applicants temporarily visiting Canada should apply at the U.S. Consular Section in their country of residence."