题目内容

You are a systems administrator and you are about to assign static IP addresses to various servers on your network. For the network 192.168.20.24/29 the router is assigned to the first usable host address, while the last usable host address goes to your Sales server. Which one of the following commands would you enter into the IP properties box of the sales server?()

A. IP address: 192.168.20.14 Subnet Mask: 255.255.255.248 Default Gateway:192.168.20.9
B. IP address: 192.168.20.254 Subnet Mask: 255.255.255.0 Default Gateway:192.168.20.1
C. IP address: 192.168.20.30 Subnet Mask 255.255.255.248 Default Gateway:192.168.20.25
D. IP address: 192.168.20.30 Subnet Mask 255.255.255.240 Default Gateway:192.168.20.17
E. IP address: 192.168.20.30 Subnet Mask 255.255.255.240 Default Gateway:192.168.20.25

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患者,男性,56岁,既往多年风湿性心脏病史,今晨饭后突然出现腹部绞痛,伴恶心、呕吐,无寒战,发热3小时入院。查体:急性病容,血压110/80mmHg,全腹轻压痛,反跳痛、肌紧张不明显,无移动性浊音,肠鸣音6次/分,无气过水声。血常规分叶粒细胞0.60。该患者可能的诊断是()

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男性,27岁,3天前搬重物后感腰痛,伴右下肢放射痛,咳嗽、喷嚏时症状加重,不能下床活动,以前无类似发作史。查体:腰椎活动明显受限,直腿抬高仅达10°,加强试验阳性。右足外侧外踝部皮肤感觉过敏,右跟腱反射减弱.X线平片腰椎生理弧度消失。下列哪一项是分析是错误的()

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B. 腰~骶椎间盘突出通常是骶神经根受压
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