签证体检问题

ll289UID: 3540049

If you plan to visit for more than six months:
You will need a medical exam if you:

have lived temporarily for six or more consecutive months
in one or more of these countries or territories  
in the one year immediately before the date you want to enter Canada. (This applies even if you are a citizen of a country that does not need a visa to enter Canada.) or
will come to Canada to work in an occupation in which public health must be protected. See below for jobs for which you need a medical exam.
apply for a Parent and Grandparent Super Visa.
If you do need a medical exam, the visa office will tell you how to proceed.

怎么觉得假如我过去一年内，在中国没待6个月就可以免体检了？我这一年都在美国，貌似美国是属于免体检范畴。。。我觉得我没理解错吧？？？求教！