then dept of edu really should look into this

送交者: kma 于 2010-07-19, 13:37:23:

回答: 多了，例如preston.edu 由方舟子于 2010-07-19, 13:24:40:

tightening the accredition process

my guess is US government officals don't think it's a priority, as those cheaters mainly focus on overseas and little harm was done within the US