1mol 与足量的NaOH溶液充分反应,消耗的NaOH的物质的量为 [ ]
A.5 mol
B.4 mol
C.3 mol
D.2 mol
答案:A
We are looking forward to _ the sports meeting. [ ]
A. joining
B. to join
C. joining in
D. to join in
物流公司或货主企业的物流部门在进行物流作业(或作生中心)的划分时,其作业主要包括哪些项目?