为了自身安全,进入陌生场所应该先了解()
A.避难逃生方向
B.安全门、楼梯位置及其是否畅通
C.查看消火栓、灭火器等各类灭火及避难器械
参考答案:A, B, C
---I hope you enjoyed the film last night.
---How on earth do you know I went to a film? I you.
A.won’t tell
B.didn’t
C.haven’t told
D.don’t tell
适于醛固酮测定的防腐剂是()
A.甲醛
B.甲苯
C.浓盐酸
D.冰乙酸
E.稀盐酸