之前讨论过这个问题,如果直飞美国,然后从美国直接回来4 o9 R3 R1 N' q/ P2 E# g( Q; L
. l1 Y) f# k- n: T0 \" G7 |" p eImmigration and Refugee Protection Regulations ' \4 @7 d6 C5 ]$ x0 s( g6 CSection 190 (3) (f)' b& N, o l @8 [2 @! H3 F
7 u! D. V4 ?6 l4 P9 n(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; C% Q4 R% a, ~ B" l0 y; f8 b
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(f) to re-enter Canada following a visit solely to the United States or St. Pierre and Miquelon, if they# U4 A* s% e" F7 {4 ]
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(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% ^/ N" j2 a6 Z$ }( O9 R& l
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(ii) return to Canada by the end of the period initially authorized for their stay or any extension to it;