别指望在加拿大办美签了,人家网站上写的很清楚: 2 j4 y, b( s5 v% B1 j3 B- j8 r) k& H
1 l% c' k2 U1 Z% E! N http://www.consular.canada.usembassy.gov/usa_visa.asp 里的: 6 E/ H2 d/ O% }4 q2 \- \3 E& G2 z0 c- }- P8 I; u0 O a
"Important Notice for Applicants with a Visitor's Permit to Canada# I' Z- `+ W* r% b
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With rare exceptions, visa applicants temporarily visiting Canada should apply at the U.S. Consular Section in their country of residence."