感谢大家帮助。我是在CIC网上看了以下陈述才来求证的 ' H/ H+ l: @) U3 q - i; z; u j j3 A( g- pIf you leave Canada and want to return, you must have:9 l) t% O# R- x8 f( ~& M( x. c0 d
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a valid passport or travel documents: N9 u r0 t$ a- a
a valid study permit if you are returning to study in Canada and& S( {8 S R) \& [/ r4 v1 Y _
a valid temporary resident visa if you are a citizen of a designated country for which Canada requires a visa.9 C7 A$ G; M! a+ T/ c) x
If you are a citizen of a designated country and you travel to a country other than the United States, Greenland or Saint-Pierre et Miquelon, you will need a multiple-entry visa to re-enter Canada. If your temporary resident visa has expired or if your visa was only valid for a single entry, you must re-apply for a temporary resident visa at a Canadian visa office outside Canada before you can re-enter Canada.