第二次申请加拿大旅游签证被拒

1月份办好美国旅游签证后，2月6日在上海的加拿大签证申请中心递交旅游签证申请，结果7日就出来拒签信。上次是2010年6月份申请加拿大旅游签证被拒。这次拒签信倒是给出了详细的拒签理由：1. You have not satisfied me that you would leave Canada at the end of your stay as a temporary resident. In reaching this decision, I considered several factors,including: Your current employment situation, Your personal assets and financial situation. 2. I am not satisfied that you have sufficient funds, including income or assets, to carry out your stated purpose in going to Canada or to maintain yourself while in Canada and to effect your departure.
我递交的公司准假信所附的公司营业执照是复印件加盖公章，房产证也是复印件，个人储蓄账户6个月的明细清单是原件。以上3个材料都没有翻译件，都退还了。分析一下拒签的原因，是因为没有提供原件和翻译件的缘故？
原计划是三月底到达美国，买辆二手车自驾游。六月份从西雅图进入加拿大，7月份开到阿拉斯加。听说在西雅图申请加拿大旅游签证比较容易，到时候在西雅图再试一下，看能否申请到加拿大旅游签证。