题目： Studying in groups is necessary __________ you want to do well in school. [ ]A. if B. until C. unless D. though 答案： A
题型：单项选择题 A3/A4型题 患儿，5岁，反复发作性意识丧失，发作时动作停止，发作中脑电图可见棘慢波，智力基本正常。该患者的治疗药物首选（）A.丙戊酸钠B.卡马西平C.苯妥英钠D.苯巴比妥E.托吡酯 查看答案
