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自1962年Fantz氏提出用选择优先观看法(PL)测定婴幼儿视力后,Atkinson(1974),Fullton(1978),Banks(1978),Dobson(1978),胜
Atkinson (1974), Fullton (1978), Banks (1978), Dobson (1978), since Fantz’s proposed selection of preemptive vision (PL) in 1962,