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参考答案：
是指企业为实现生产经营目的而从事的各类有关资源、知识、信息交易等活动的总称。
A primigravida at 28 weeks’ gestation is admitted with a diagnosis of preterm labor. The client’s contractions are occurring every 15 to 20 minutes, lasting 25 seconds. The membranes are intact. What should the nurse do
A. Request assistance from the neonatal resuscitation team.B. Place the client on bed rest on her left side.C. Obtain equipment for an amniotomy.D. Prepare terbutaline in an intravenous solution of normal salin
心脏听诊发现大炮音，一般考虑（）
A.室性心动过速
B.心房颤动
C.三度房室传导阻滞
D.阵发性室上性心动过速
E.期前收缩
