停经2月余,阴道少量流血4天,今晨流血量较多,伴下腹隐痛而入院。检查:阴道少量血液,宫口闭,宫体大如孕2个月,双附件阴性,尿妊娠试(+)。　患者女,35　岁,近日总出现心悸、快速心动、胸痛、头昏、眩晕、昏迷或半昏迷等症状,医生诊断为心动过速　在长期用药的过程中,突然停药易引起心动过速,这种药物最可能是　共用题干　One-third　of　Parents　Lack　Facts　about　Child　Development
One-third　of　parents　of　babies　have　a　surprisingly　low　knowledge　of　child　development,in-cluding　basic　concepts　about　what　their　children　should　know　or　how　they　should　act,a　new　study　finds