实验设计的基本原则() ["随机化、重复、设置对照","随机化、盲法、配对","重复、随机化、配对","齐同、均衡、随机化","随机化、盲法、设置对照"]
眼睑的皮肤层具以下几个特点,除了()。 ["薄而疏松","富有弹性","多皱褶","易移动","易伸展"]
肾性尿崩症治疗可采取下列措施,除了() ["A.双氢克尿噻","B.氯磺丙脲","C.碳酸锂","D.消炎痛","E.给予低盐低蛋白饮食"]
以下都可引起肾性尿崩症,除了() ["A.低血钾","B.高血钙","C.多囊肾","D.碳酸锂","E.消炎痛"]
将受试对象随机分配到各处理组中的实验设计方案是() ["配对设计","配伍组设计","完全随机设计","交叉设计","析因设计"]
我国计划经济体制下形成的社会救济制度,存在着()、()、()等问题。