L3PTN属于哪个层级（）？
A.核心
B.汇聚
C.城域
D.接入
参考答案：A
定喘汤的组成药物中不含（）.
A.桑叶生石膏
B.黄芩桑白皮
C.苏子款冬花
D.甘草炒白果
E.杏仁法半夏
They are leaving for Hangzhou in ten days-________, next Friday. [ ]
A. in other words
B. in many ways
C. on the whole
D. on the contrary
