媒介产业的特点
参考答案：
生产的特点、产品的特点、销售的特点、消费的特点。
We Chinese are drinking ____ milk per person today as we did in 1995.
A．more than twice
B．twice as much
C．twice as many as
D．twice as much as
窦性心动过速的治疗主要是（）
A.寻找原因与诱因，积极治疗原发病因
B.静注毛花苷C（西地兰）
C.给予β受体阻滞剂
D.给予维拉帕米（异搏定）
E.给予镇静剂
