大青龙汤证的病机主要是()
A.外感寒邪,内伤饮食
B.风邪袭表,营卫不和
C.寒邪袭表,营阴郁滞
D.风寒外袭,少阴阳虚
E.寒邪束表,内郁化热
参考答案:E
On hearing the news that his mother was seriously ill, he went to his boss and asked for a _____. [ ]
A. vacation
B. holiday
C. leave
D. rest
电力客户服务中心要时刻保持电话畅通,振铃次数小于等于4次,振铃时间转接呼叫小于等于()。