硫酸镁继续用药的条件是() ["A.膝反射存在,呼吸≥16次/分,尿量≥25ml/h
","B.膝反射存在,呼吸<10次/分,尿量<20ml/h
","C.血压升高,脉搏加快
","D.呼吸存在,膝反射存在
E.尿量>100ml/24h"]
玉米追施氮肥的关键时期是()。 ["抽雄期","开花期","苗期"]
对与带有缓和曲线的平曲线,缓和曲线的起点和终点分别用()表示。 ["YH","ZH","HY","HZ"]
患者为中年女性,尿频、尿急,腰腹拘急疼痛三天,伴寒热往来,口苦呕恶,大便十日一行,小便黄,舌红苔黄腻有剥脱,少津液,脉细数濡。应选用() ["知柏地黄丸加车前子","八正散","八正散合小柴胡汤","八正散合小柴胡汤去大黄加生地","石韦散合六味地黄丸加藕节、生地"]
心电图的标准走纸速度是() ["2.5mm/s","5mm/s","15mm/s","25mm/s","50mm/"]
应变能密度