阅读文章，回答题：
The first training class for employees of state-owned enterprises, sponsored by theState Development and Planning Commission and the Motorola (摩托罗拉) Co.. This is thefirst cooperation project after the two sides signed a memorandum (备忘录) of understanding in April 1997.
The participants in the 10-day classincluded 65 general managers, managerial personnel and technicians from 17enterprises.
According to the memorandum, Motorola willtrain personnel from 1,000 enterprises over a five-year peri- od. The trainingfocuses on business management, financial management, market plan, qualitycontrol, manage- ment skill and labor resources management. It also includeshigh-level training for selected personnel and assis tance in financing forsome enterprises in equipment innovation (革新).
Motorola hopes to promote advanced business management skills throughthe project, and train sales peoplefor its projects.                                                                                                           
The training project will last for 46______________

答案解析

five years
【解析】文中的“Motorola will train personnel from l，000enterprises over a five-year period．”表明：培训项目  将持续五年时间。