播后除草
贵州大学建校时间是()年。 ["1901","1902","1903","1900"]
患者,21岁。持续发热12日,体温38~40℃,无明显畏寒、寒战,伴食欲不振,腹胀,近日出现听力下降,曾不规则使用过青霉素、氨苄西林等治疗。查体:体温39.8℃,脉搏90次/分,肝右肋下1.0cm,脾左肋下1cm可及。血WBC3.5×109/L。为确定诊断首选下列哪项检查() ["肥达反应","骨髓培养","血培养","小便培养","大便培养"]
热毒壅盛三焦,充斥表里内外,宜选用() ["凉膈散","泻白散","清胃散","大承气汤","黄连解毒汤"]
联轴器主要任务是() ["传递扭矩","传递动力","安装制动轮"]
判断汽蚀的判据是什么?