搜题请搜索小程序“爱下问搜题”
问题 单项选择题 A1/A2型题

关于外科手术应用抗菌药物的叙述正确的是（）

A.清洁手术的手术野无污染，但也需要常规预防应用抗菌药物

B.术前已经存在细菌性感染的手术，此时应用抗菌药物属于治疗性应用

C.为预防手术切口后感染，应针对表皮葡萄球菌选用药物

D.对预防手术部位感染应选用抗菌谱广的药物

E.外科手术预防用抗菌药物，总的预防时间不应超过72小时

答案

参考答案：B

选择题

下列常用词语中书写完全正确的一项是

A．精兵简政精诚所致居心叵测

B．安装电话一幅对联天翻地覆

C．一鼓作气指高气扬 洋洋洒洒

D．手疾眼快眼花缭乱拾人牙慧
查看答案
单项选择题

Originally, the World-Wide Web was designed as information medium for (71) research teams. A deliberately simple implementation model was chosen to make it as simple as possible for authors to (72) documents to the web, and to (73) these in the sense of updating content. This implementation model is centered around the notion of resources, usually file-base D. For the (74) intended use of the web, resources presented a useful abstraction, as they related to relatively self-contained chunks of information such as research publications and (75) pages. Such chunks of information typically could be set up and maintained independently of other resources, so that resources were the appropriate abstraction for composition and modification.

（74）（）

A.originally

B.before

C.success

D.reform
查看答案