제 목    hcqwhNEGegNNWbE 이 름    Stacy 날 짜    2018/06/28 조 회    1 How many more years do you have to go? fdacontrolledmeds.com Since dogs can discern flickers at 75Hz, a television screen probably appears to be rapidly flickering to them. A flickering image would obviously appear to be less real, and thus many dogs do not direct much attention to it.