Astute service providers realize that the continued support

【名词&注释】

网络通信(network communication)、网络设备(network equipment)、办公室(office)、提供商(provider)、真菌性败血症(fungal septicemia)、不符合(inconformity)、一个中心(one center)、革兰氏染色(gram stain)、不允许(not allow)、厌氧菌败血症(anaerobe septicemia)

[单选题]Astute service providers realize that the continued support of legacy X.25 and asynchronous network element using separate operations network is cost(16).For example,the maintenance of multiple networks can require additional staff. Often, this staff must be trained on multiple vendor technologies, sometimes requiring parallel groups specializing in each (17) .Hence, additional maintenance procedures must be maintained and administrative records are (18) .The duplication of transport facilities to carry (19)network traffic is an inefficient use of resources. And not surprisingly, more technologies installed in a central office means the necessity for more physical space, and an increase in power connections and power consumption migration of these (20) network elements to IP-based DCns is alogical strategy.

A. D

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学习资料：

[单选题]男性，60岁。颈部痈切开引流，并全身应用泰能抗生素治疗2周后患处红肿明显好转。1天前开始突然出现高热，体温40．0℃，寒战，并出现神志淡漠，眼底检查发现视网膜有小的、白色发亮圆形隆起，应诊断为（）

A. 革兰氏染色^{(gram stain)}阳性细菌败血症
B. 革兰氏染色^{(gram stain)}阴性细菌败血症
C. 真菌性败血症
D. 厌氧菌败血症^{(anaerobe septicemia)}
E. 脓血症

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