问答题 The sales service includes installation (安装) and training within one week of receiving the order. On the day of installation, our training engineer will spend one hour with your secretary, providing instructions on the operation of this easy-to-use photocopier (复印机). You may call us for help at any time in the future. If necessary, our trainer will go to your company to help you with the operation of the machine.

单项选择题 I have already given instructions for the task to be taken up first and the engineers doing the job to work overtime.

单项选择题 Party B has the right to cancel the contract with a written notice to Party A under the following conditions.