疮疡有脓时疼痛性质是()
A.阵发痛
B.持续
C.烧痛
D.裂痛
E.啄痛
参考答案:E
Wenchuan earthquake____on May 12th, 2008. [ ]
A. happened
B. happen
C. happenning
D. has happened
休克患者持续吸氧时,停用前应先()流量,使呼吸中枢逐渐(),而不能骤停。