50.根據 DSM-5 診斷分類，下列疾病哪一個不屬於神經發展障礙症 (neurodevelopmental disorder)? (A)智能發展障礙症 (intellectual developmental disorder，舊稱「智能不足」) (B)動作障礙症 (motor disoders) (C)行為規範障礙 (conduct disorders) (D)注意力不足/過動症 (attention-deficit/hyperactivity disorder)