诊断人类原发性非典型性肺炎所用的非特异性血清学试验为() ["间接血凝试验","嗜异性凝集试验","冷凝集试验","代谢抑制试验","生长抑制试验"]
以下有关电位差的说法,正确的有()。 ["电路中任意两点间电位的差值称为电压(电位差)","A、B两点的电压以UAB表示,UAB=UB-UA","电位差是产生电流的原因","常用的电位差单位:1Kv=103mV"]
25K型空调客车的空调控制柜(KLC40C.1T1)中温控仪ATC的设定动差值是() ["0.5℃","15℃","1.4℃","1.0℃"]
急性肾小球肾炎时,尿中最典型的特征是出现() ["蛋白尿","颗粒管型","白细胞","红细胞管型","白细胞"]
血友病检查的确诊试验是() ["STGT及纠正试验","凝血因子活性检测","复钙交叉试验","TT及纠正试验","FDP检测"]
土壤污染的特点是什么?