激光的特点以下哪一项有误 ["A．方向性强","B．相干性好","C．穿透性强","D．单色性好","E．极化性高"]
关于激光的英文"laser"，以下哪一项是正确的 ["A．Lightactivation by stimulation emanationofradiation","B．Luminant amplimeter by stimulation emission of radiation","C．Light activation by strong emission of radiation","D．Luminant activation before strong emission of radiation","E．Light amplification by stimulation emisssion of radiation"]
抽样误差最大的抽样方法是 ["A．单纯随机抽样","B．系统抽样","C．分层抽样","D．整群抽样","E．先分层抽样再整群抽样"]
前瞻性队列研究与流行病学实验的根本区别是 ["A．是否人为控制研究条件","B．是否在现场人群中进行","C．是否检验病因假设","D．是否设立对照组","E．是否进行显著性检验"]
试述黑格尔在对“现实性”问题的论述中是怎样以貌似保守的形式阐发了他的革命的辩证法思想。（30分）
试述恩格斯在《费尔巴哈和德国古典哲学的终结》中是怎样评论费尔巴哈的道德观及其错误的。（30分）
