是吗，不用坐移民监的三种情况里面并不包括出国读书啊。
If you are outside Canada for extended periods of time, you can accumulate residency days if you are:
- Travelling with a Canadian spouse or common-law partner, or are a child accompanying a parent, or
- Employed on a full-time basis by a Canadian business or the Public Service of Canada, or
- The spouse, common-law partner or child of a permanent resident who is outside Canada and who is employed on a full-time basis by a Canadian business or the Public Service of Canada.