下列哪一项不是肛隐窝炎的临床表现:() ["自觉肛门部不适","粪便常带有粘液","疼痛时间较长","可伴有便秘","肛门潮湿瘙痒"]
可用于热结肠燥便秘的方剂是:() ["润肠丸","黄连解毒汤","龙胆泻肝汤","凉血地黄汤","脾约麻仁丸"]
尿潴留发生在术后第2~3天,其原因最可能为:() ["局部填充物过多","精神过度紧张","麻醉影响","局部组织水肿","粪便嵌顿"]
有两台100kVA变压器并列运行,第一台变压器的短路电压为4%,第二台变压器的短路电压为5%。求两台变压器并列运行时负载分配的情况?
尿潴留时可以行导尿术,但一次排尿量不得超过:() ["500ml","800ml","1000ml","1200ml","1500ml"]
简述用材林树种选择的要求。