患者,男性,65岁,农民,高血压病9年,长期不规则服用降压药,平时常觉胸闷、气短,无咳嗽咳痰。近2个月来胸痛反复发作,休息后好转,1周来发作频繁,来院就诊。查体:T36.5℃,HR89次/分,BP168/88mmHg,口唇发绀,听诊双肺呼吸音清、对称,心律齐、无杂音。提示:患者全麻诱导插管经过顺利,经胸骨正中切口进胸,切开心包显露心脏。术者准备行冠脉搭桥术。提问:作为麻醉医师应采取下述哪些措施控制循环配合手术顺利进行?()
A. 翻动心脏前尽量补足血容量
B. 主动脉根部缝合血管时要提升血压以保证重要脏器血供
C. 控制心律在50~75次/分,降低心肌氧耗且便于手术操作
D. 应用促凝药物
E. 主动脉根部缝合时控制收缩压低于90mmHg,防止主动脉撕脱和夹闭钳滑脱
F. 缝合前降支时因心脏受压,回心血量减少,应设法使MAP维持在60mmHg以上保证重要脏器血供
查看答案
You work as an administrator at ABC.com. The ABC.com network consists of a single domain named ABC.com. All servers on the ABC.com network have Windows Server 2008 R2 installed. Some of ABC.com’s workstations have Windows 7 installed, while the rest have Windows 8 installed. After installing a new Windows Server 2012 R2 computer in the ABC.com domain, you configure it to run the File and Storage Services server role.You are instructed to create a shared folder on the new server, and configure the use of Previous Versions for restoring files located in the shared folder. Which of the following actions should you take?()
A. You should consider configuring the Shadow Copies settings on the new server.
B. You should consider configuring the Snapshot settings on the new server.
C. You should consider configuring the Background Copy settings on the new server.
D. You should consider configuring the Permission settings on the new server.
商流少环节,物流多环节是指()
A. 物流和商流相结合形式
B. 商流在前,物流在后
C. 物流在前,商流在后
D. 商流迂回,物流直达
E. 物流迂回,商流直达