化简:3(ab-2a2)-(2ab-5a2)
原式=3ab-6a2-2ab+5a2=ab-a2
–Can you give me some advice on what major I should take at college?
–______. We can talk about it over lunch.
A.Never mind
B.With pleasure
C.In that case
D.Make yourself at home
患者,女,26岁,因发热、咳嗽而入院,诊断为肺炎,体温39.5℃,皮肤发红,触之有热感,呼吸,心率加快。该患者的护理诊断之一“体温过高:与病原菌感染有关”。
如果患者出现痰液黏稠,不易咳出,呼吸困难,护理该患者首先应解决的问题是()
A.清理呼吸道无效
B.皮肤完整性受损
C.体温过高
D.活动无耐力
E.体液不足