别指望在加拿大办美签了,人家网站上写的很清楚: B; J! w7 M8 y
' |3 S* _3 M, W8 o http://www.consular.canada.usembassy.gov/usa_visa.asp 里的:9 q7 y* J4 F6 [& b
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"Important Notice for Applicants with a Visitor's Permit to Canada % k" }9 ^: M7 h- M 9 h" `; [3 `# S/ j& OWith rare exceptions, visa applicants temporarily visiting Canada should apply at the U.S. Consular Section in their country of residence."