社会测量的要件有（） ["测量工具","测量规则","测量对象","测量数值","测量概念"]
为了提高犁铲的硬度和耐磨性，要进行（）热处理。 ["正火","局部淬火","整体淬火","表面渗碳"]
硬下疳的潜伏期为（） ["2～4周","2天","＞3月","5～6个月","＞半年"]
脑组织处于病理状态时，小胶质细胞的病变不包括（） ["增生","肥大","吞噬类脂质现象","卫星现象","神经元被吞噬状态"]
传染性软疣挤出的白色物质是（） ["水分","皮脂","脓液","病毒及其代谢产物","疥虫"]
生态系统活度生态位概念
