女性，48岁，因腰痛2年、左下肢麻木1月入院，经检查确诊为腰椎间盘突出症并腰椎管狭窄，此病人既往有糖尿病病史。完善相关检查后在全麻下行了腰椎间盘突出症髓核摘除、椎管减压术，术后留置一根伤口引流管及导尿管。病人术后第三天出现头痛、呕吐，24小时引流液为300ml，为淡黄色的血性液体。

护士应采取的护理措施不包括（）

A.严密观察生命体征

B.鼓励病人多咳嗽

C.合理使用抗生素

D.保持伤口敷料清洁、干燥

E.观察、记录引流液的量及性状

Bluetooth is a universal radio interface in the (1) frequency hand that enables portable electronic devices to connect and communicate wirelessly via short-range, ad hoc networks. Each unit can simultaneously communicate with up to (2) other units per piconet. Moreover, each unit can simultaneously (3) to several piconets. Eliminates the need for wires, cables and connectors for and between cordless or mobile phones, modems, headsets, PDAs, Computers, printers, projectors, local area networks, and so on, and paves the way for new and completely different devices and applications. Technology Characteristics (4) symbol rate exploits maximum available (5) bandwidth。

5（）

A．messages

B．certificates

C．applets

D．channel