选用外转胎位术纠正臀先露的最佳时期是（） ["A.妊娠22～24周","B.妊娠26～28周","C.妊娠30～32周","D.妊娠34～36周","E.妊娠38～40周"]
麝香的药用部位是（） ["未骨化的密生茸毛的幼角","胆结石","干燥体","角","干燥分泌物"]
1930年的河大有几院？（） ["3","4","5","6"]
宫口开全后，开始保护会阴的时机应是（） ["经阴道外口看到胎发时","胎头开始拨露时","胎头拨露10分钟时","胎头拨露阴唇后联合紧张时","胎头开始着冠时"]
石决明的药用部位是（） ["背甲","贝壳","干燥体","角","干燥分泌物"]
试述溶栓治疗冠脉再通的指标。
