临时工作的第一种工作票,可在()直接交给工作许可人。
参考答案:工作开始前
为合成镇痛药,化学结构属哌啶类,镇痛作用弱于吗啡,有成瘾性().
A.吗啡
B.哌替啶
C.美沙酮
D.纳洛酮
E.芬太尼
The integrated logistics activities, equipment and information network, and so on, is called ()
A.logistics integration
B.Logistics industry
C.Logistics center
D.Logistics Park