属于引起高渗性脱水的因素是
A．急性腹膜炎
B．急性肠梗阻
C．大量呕吐
D．大面积烧伤
E．上消化道梗阻
参考答案：E
—_______ much water in the glass? —No, only a little!
A. Are there B. There are C. Is there
青岛市什么时候开始时候医保制度？实施医保之前缴费年限怎么确定？
