氧化亚氮的优点有()。
A.只要不缺氧,N20无毒性
B.麻醉诱导及苏醒均迅速
C.镇痛效果强
D.对气道无刺激
E.无燃烧性
参考答案:A, B, C, D, E
Would you please _____ the paper for me and see if there are any obvious mistakes? [ ]
A. look around
B. look into
C. look up
D. look through
关于眶内炎性假瘤的说法,正确的是()
A.眶内非特异性增殖炎症
B.临床表现主要是突眼和疼痛
C.抗生素及激素治疗有效
D.可有眼球运动障碍
E.可由鼻窦炎症所致