见IRCC官网的文件page 47（11.1 Rights of permanent residents）。 11.1 Rights of permanent residents
Subsection A27(1) provides that a permanent resident has the right to enter and remain in
Canada subject to the provisions of the Act.
Subsection A19(2) requires an officer to allow a permanent resident to enter Canada if
satisfied following an examination on their entry that they have that status. https://www.canada.ca/content/dam/ircc/migration/ircc/english/resources/manuals/enf/enf04-eng.pdf -dongji(冬季阳光) 2020-5-31