经营单位应填 ______ 。
A．苏州市对外贸易公司(3210910208)
B．苏州纺织集团
C．上海远东报关公司
D．上海海关
参考答案：A
The problem is very difficult, so many students can't ____. [ ]
A. work them out
B. work it out
C. work out them
D. work out it
组织向供方索取组织购买的化学品物质安全数据表（MSDS）。上述情况适用于标准的（）条款
