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问题 单项选择题

男性，60岁，70%烧伤第2日，收缩压80mmHg，呼吸34次/min，每小时平均尿量18ml，有黑色大便，血胆红素36mmol/L，血小板40×109/L，Glasgow计分5分，目前最恰当的诊断是

A．DIC

B．MSOF

C．ARDS

D．ARF

E．AIN

答案

参考答案：B

单项选择题

光干涉甲烷检定器主要检测甲烷浓度，其测定范围是（）

A.0—5％、0—100％

B.0一4％、0一100％

C.0－6％、0一100%

D.0一10％、0一100％
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单项选择题

The network layer provides services to the transport layer. It can be based on either___20___. In both cases, its main job is ___21___ packets from the source to the destination.

In network layer, subnets can easily become congested, ncreasing the delay and ___22___ for packets. Network designers attempt to avoid congestion by proper design. Techniques include___23___ policy, caching, flow control, and more.

The next step beyond just dealing with congestion is to actually try to achieve a promised quality of service. The methods that can be used for this include buffering at the client, traffic shaping, resource___24___, and admission control. Approaches that have been designed for good quality of service include integrated services (including RSVP), differentiated services, and MPLS.

24（）

A．distribution

B．guarantee

C．scheme

D．reservation
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