优质碳素钢可分为()。 ["2组","3组","4组","5组"]
肠梗阻可见腹痛,并伴有() ["黄疸","呕吐","腹泻","血便","急性发热"]
下列不支持肠易激综合征诊断的临床表现是() ["每天排便多于3次","每周排便少于3次","块状\/硬粪便","稀水样便","粪便排出顺利,无不尽感"]
要健全立法机关和社会公众沟通机制,开展立法协商,充分发挥()在立法协商中的作用,探索建立有关国家机关、社会团体、专家学者等对立法中涉及的重大利益调整论证咨询机制。 ["民主党派","工商联","政协委员","无党派人士"]
关于精神分裂症偏执型。不正确的说法是() ["妄想结构比较松散","不常伴幻觉","妄想内容比较荒谬","缓慢发病者多","及时治疗效果好"]
电化学加工有哪几种类型?各有何应用?A类(阳极溶解法)