精神分析理论认为,人在根本上是() ["积极的","消极的","性善的","性恶的"]
闻一多《一句话》所运用的主要表现方法是() ["对比","烘托","类比","隐喻"]
屠宰动物受检率必须达()。 ["90%","100%","95%","98%"]
国防法规有别于其他法规的特征在于() ["调整对象的军事性","公开程度的有限性","司法适用的优先性","处罚措施的严厉性","适用范围的全民性"]
机械螺纹连接钢筋,在检查螺纹质量时抽查量不少于() ["5%","10%","20%","50%"]
为什么升压时,要注意空载励磁电压和电流?