上呼吸机时,出现低压报警,常见的原因()。
A.氧源压力低
B.氧浓度低
C.潮气量较少
D.痰液黏稠
E.管道连接不紧或气囊漏气
参考答案:E
He put his photos on the Internet for us _____.[ ]
A. to have a look
B. to read
C. to have a look at
D. to look
下 * * 酰甘油含量最高的脂蛋白是()
A.Lp(a)
B.乳糜微粒
C.VLDL
D.LDL
E.HDL