商务。多谢了
在使馆网站上找到如下信,貌似不需要签证,谁知道的给确认一下吧。多谢了! http://www.cic.gc.ca/english/visit/visas.asp
Visitor Visa Exemptions
Many people do not require a visa to visit Canada. These include:
•persons lawfully admitted to the United States for permanent residence who are in possession of their alien registration card (Green card) or can provide other evidence of permanent residence;