天线基座安装时,应使天线旋转平面()
A、平面平行
B、与船舶主甲板
C、稳定,对“平行”不作要求
D、A或B
参考答案:B
With the word “ PM2.5” _________ appearing in media reports, people pay greater attention to it and seek health tips for smoggy days.
A.constantly
B.consequently
C.permanently
D.immediately
男性,52岁,因横结肠癌完全性肠梗阻急诊行剖腹探查、根治准备,不正确的处理是()
A.可选择硬膜外麻醉
B.选择全麻使用肌松药时,应注意与链霉素等的协同作用
C.注意血容量及血钾的变化
D.输液必须适当限制,补充手术当天输液量已足够
E.术后可考虑肠道外高营养治疗