We have breakfast _____ 6:30 _____ the morning. [ ]
A. at; on
B. at; in
C. in; on
答案:B
5W2H法
下列哪项不属于急诊范围()
A.高热
B.急性中毒
C.胆结石
D.昏迷
E.急性腹痛