小件寄存员在收货时应做哪些工作?
参考答案:
⑴寄存登记;
⑵热情接待旅客,对寄存物品逐件检查;
⑶杜绝易燃、易爆、易腐烂,有毒物品寄存。
Finally, the thief handed everything_______ he had stolen to the police .
A.which
B.what
C.whatever
D.that
简述病人自控镇痛(PCA)仪的组成和参数。