呼吸衰竭时出现的电解质紊乱少见的类型是()
A.低钾血症
B.高钙血症
C.高钾血症
D.低氯血症
E.低钠血症
参考答案:B
— Is Ms Smart a nice teacher?
— Yes, . [ ]
A. she is
B. he is
C. she isn't
D. he isn't
170在电话网中的服务业务是()。
A.号码查询台
B.集中付费业务
C.自动话费查询台
D.报时台