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问题 单项选择题 A1/A2型题

患者，男性，79岁，癌症末期临终患者，呼吸微弱，为其测量呼吸频率的方法是（）。

A.仔细听呼吸音响并计数

B.手置于患者鼻孔前，以感觉气流通过并计数

C.手按胸腹部，根据胸腹部起伏次数计算呼吸频率

D.测得的脉率乘以1/4，以推测呼吸次数

E.置少许棉絮于患者鼻孔前计数其飘动次数

答案

参考答案：E

单项选择题

Even though current technologies make the ultimate segmented network impractical, new technologies and products hold the promise of making the concept a reality. Most important of all these new technologies are (71) . The ultimate switched LAN, which is technically possible, now, exhibits the following characteristics:
1. High-speed yet cost-effective switching devices can be implemented on a wide scale, providing dedicated connections for individual users and supporting the aggregate (72) of all networked users.
2. The ability to deploy switching capabilities incrementally into the (73) base. Switching implementations support switching of individual users or groups so that existing users of shared media modules can continue to use the existing equipment until they can justify moving to dedicate switched LAN connections.
3. Support and enhancement of existing routed environments. Switching (74) routint, but rather can be introduced into the network without making any changes to the existing routing equipment or configuration. (75) play a critical role in the integration of switching into existing networks.

A. RoutersB. Devices C. I/O D. DSP
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单项选择题 A1/A2型题

软组织损伤不适合手术治疗的是：（）。

A.肌腱韧带完全断裂者

B.重要的神经血管损伤者

C.筋伤后期关节强直或肌肉萎缩者

D.筋伤致神经血管卡压者

E.颈腰椎间盘突出保守治疗无效者
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