加拿大GRE的考试时间和中国一样吗？考试形势和中国一样吗？

The General Test is offered as a computer-based test in the U.S., Canada, and many other countries. Paper-based General Test administrations are offered in areas of the world where computer-based testing is not available.

GRE在加拿大是机考，在国内还是笔考吧？

两者不同的。