【正确答案】 B

【答案解析】[解析] 92-94
M: Beginning next week, the company's new computer networking system will be installed. The new system will include e-mail and file transferring capabilities that will allow us to communicate more effectively, especially when working together. Please remember that all data stored under the old system will not be transferred to the new one, so it will be necessary for all of you to make back-up files of all the data on your computers. Otherwise, we may lose some very important documents. The complete project should be fully integrated by the end of the month.