主流道衬套凹坑半径为R,注塑机喷嘴头部半径为r,那么()。
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Your network consists of an Active Directory domain named contoso.com. You have a domain controller named Server1 that runs Windows Server 2003 Service Pack 2 (SP2). From Windows Backup, you run the Backup Wizard and select the All information on this computer option. You need to restore the data contained in the Netlogon share on Server1. You must achieve this goal by incurring the minimum amount of downtime. What should you restore? ()
A. system state
B. %programfiles%\common files\microsoft shared folder
C. %systemroot%\ntds folder
D. %systemroot%\sysvol\sysvol\contoso.com\scripts folder
男,64岁,2周来不明原因发热,乏力,多汗,食欲缺乏,检查心界不大,胸骨左缘第三肋间可闻舒张期叹气样杂音,心率100次/分,律整,肺清,肝未及,脾侧位触及,血压19.5/9.33kPa(146/70mmHg)超声心动图示主动脉瓣增厚,钙化,关闭不全,上有赘生物,最可能的诊断为()。
A. 风心,主动脉瓣增厚,伴感染性心内膜炎
B. 梅毒性主动脉炎,伴感染性心内膜炎
C. 老年退行性心脏瓣膜病伴感染性心内膜炎
D. 风心病,主动脉瓣关闭不全伴感染性心内膜炎
E. 风心伴风湿活动