在涉外交往中真正做到"举止有度"要注意哪些方面？
下列项目中，属于应收账款管理成本的有（） ["对客户的资信调查费用","收账费用","坏账成本","收集相关信息的费用"]
冲裁时，间隙应选择在什么方向上？
客户办理防伪换卡申请后可以取消申请。
A ship crane which has been idle for a period of over six months shall be inspected to the same standards as a（）. ["yearly inspection","quarterly inspection","monthly inspection","weekly inspectio"]
动火作业有哪些安全要求？
