琥珀胆碱禁用于:()
A.支气管哮喘
B.烧伤或偏瘫患者
C.痛风病
D.甲状腺功能亢进
E.癫痫
参考答案:B
The old buildings, _____ the seventeenth century, were destroyed in the earthquake.
A.date from
B.dating from
C.dated from
D.to date from
掘进工作面空气的监测点,应设置在距工作面迎头()米处的回风流中。
A、5
B、10
C、15