以下各药中,善于通利血脉,行而不住,走而不守的药是( )
A.水蛭
B.虻虫
C.泽兰
D.王不留行
参考答案:D
在物流领域中通常采用()等技术手段实现速度经济这一目标。
A.直达运输
B.联合运输
C.看板
D.专门路线配送
E.库存规划
— Why hasn't she come to the party?
— I am afraid she can't.She is being________her report. [ ]
A. covered with
B. filled with
C. occupied with
D. crowded with