之前讨论过这个问题,如果直飞美国,然后从美国直接回来# E* O) j. T' @$ ?! I
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Immigration and Refugee Protection Regulations 5 X5 k3 q2 T7 gSection 190 (3) (f). a& ~; e$ D4 f' b4 {
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(3) A foreign national is exempt from the requirement to obtain a temporary resident visa if they are seeking to enter and remain in Canada solely 4 o E7 K# I$ r3 e( z: R, n6 K5 W% u) B1 y3 B1 o
(f) to re-enter Canada following a visit solely to the United States or St. Pierre and Miquelon, if they 1 c5 D- S& a: W$ v5 W! H) o( ]" k+ J1 u( z4 s9 f5 z! s! L. M
(i) held a study permit or a work permit that was issued before they left Canada on such a visit or were authorized to enter and remain in Canada as a temporary resident, and ( u+ j3 N5 M; w- `% V: `9 z! A9 e5 G! I' P3 O8 N
(ii) return to Canada by the end of the period initially authorized for their stay or any extension to it;