对商用局或试运行设备任何可能中断业务的操作须先经（）书面同意Any operation that may interrupt the services performed on devices of commercial office or in trial run should be approved in written by （）.

A、办事处副经理/代表处副国代及项目经理等Deputy Chief Representative of the representative office and project manager etc;

B、办事处经理/代表处国代 Chief Representative of the representative office;

C、产品支持部部长 Director of Customer Service Department;

D、客户